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1 Materials Molded: All the engineering and high performance THERMOPLASTIC materials such as Nylon, Acetal, Polycarbonate, Styrene, ABS, Polyamide-imide, Polysulfone, Liquid crystal polymer, Plyhenylene Sulfide, Polyetherimide, Polyimide, Polyketone. All glass filled formulations, PTFE filled plastics and mineral filled materials. Other Services Available: A complete package including molding, all secondary operations and final assembly. Operations include hot stamping, ultrasonic bonding, engraving, spin welding, drilling and tapping, etc. Additional Capabilities: Custom Injection Molding of engineering and high performance grade plastics. ( to 500 ton machine capacity). Stock shapes & profiles offered in high performance plastics. Our Specialty: The ability to provide low cost tooling and molding of precision plastic parts in quantities as low as one hundred pieces to millions of pieces to precision tolerances and specifications. We serve the critical requirements of the aerospace, automotive, business machine, computer peripheral, electronic, fluid power, OEM, packaging, telecommunication, vending and weighing industries. Danco Road, Putnam CT 0 To Order Call Toll Free Phone: Fax

2 is a product line of Putnam Precision Molding, our mission is that of being a world class leader in the custom injection molding of close tolerance high performance engineered resins and power transmission components. With our valued team of employees, we are dedicated to providing service, quality, innovation and technical support. The end result being that of an everlasting partnership and growth opportunity for both Plastock and all of our appreciated customers. For more information you may also see us on the web at or order on line at ISO 9002 is a registered trademark of Putnam Precision Molding

3 .0800 (MXL) Ultra Precision s Made of Lexan in Sizes Now the designer can incorporate positive drives with small components for power transmission applications as well as critical timing applications. Plastock has available a complete line of plastic Mini-Drive-Components, both pulleys and belts in many sizes. The designer and engineer can customize many drive systems with varying speed reductions and centering distances utilizing standard components. Specifications Material: Fiberglass reinforced Lexan. An important feature of this material is that it will take any loading condition the belt will take, no exceptions. Data: Tensile strength (psi),000 Compressive strength (psi),000 Flexural strength (psi) 9,000 Impact (ft-lbs/in. notch): 2.0 Water Absorption ( hrs.) 73 F 0.29% Tolerance Chart Eccentricity Wobble to OD (TIR) Total Perpendicularity Size Diameter Indicated Reading (Face to ) 0- T T T Advantages: Positive drive, no backlash where space is a problem in design Can replace gear drives with comparably close centering distances Quiet operation, both the belts and pulleys have noise dampening qualities Excellent reduction ratios of driver and driven in small centering distances as well as large centering distances Light weight, requires no lubrication Can operate at almost any speed Can be fastened to shafts by conventional methods such as set screws, D bores, pinning, flats, press fit, cementing etc. Non-corrosive, will not rust Non-magnetic and non-conductive Tolerances equivalent to metal pulleys Danco Road, Putnam CT 0 To Order Call Page 2

4 .0800 (MXL) Timing Belt s For Belts up to ¼ Wide Single Flange on Hub Side Part Number 0T0800SF T0800SF 2T0800SF T0800SF 5T0800SF # of Flange (FD) Stock (B) 3/ 3/ 3/ /8 /8 Hub (H) T0800SF 8T0800SF T0800SF 2T0800SF T0800SF /8 T0800SF 2T0800SF 28T0800SF T0800SF T0800SF /" Material: 0% Glass Filled Polycarbonate 3T0800SF T0800SF 2T0800SF T0800SF 8T0800SF 50T0800SF 0T0800SF 5T0800SF 72T0800SF 80T0800SF T0800SF 00T0800SF 0T0800SF T0800SF T0800SF Examples of Specials: s: D Shaped, Key Slots, Square or Spline Hubless or hub diameters other than standard Aluminum, brass or stainless steel inserts thru bore with pulley over-molded Non-standard bores including metric bores are available upon request One or two set screws are optional Danco Road, Putnam CT 0 To Order Call Page 3

5 .0800 (MXL) Timing Belt s For Belts up to ¼ Wide Double Flange Part Number 0T0800DF T0800DF 2T0800DF T0800DF 5T0800DF # of Flange (FD) Stock (B) 3/ 3/ 3/ /8 /8 Hub (H) T0800DF 8T0800DF T0800DF 2T0800DF T0800DF /8 T0800DF 2T0800DF 28T0800DF T0800DF T0800DF /" 3T0800DF T0800DF 2T0800DF T0800DF 8T0800DF Material: 0% Glass Filled Polycarbonate 50T0800DF 0T0800DF 5T0800DF 72T0800DF 80T0800DF T0800DF 00T0800DF 0T0800DF T0800DF T0800DF Examples of Specials: s: D Shaped, Key Slots, Square or Spline Hubless or hub diameters other than standard Aluminum, brass or stainless steel inserts thru bore with pulley over-molded Non-standard bores including metric bores are available upon request One or two set screws are optional Danco Road, Putnam CT 0 To Order Call Page

6 .0800 (MXL) Timing Belt s For Belts up to ¼ Wide O.D. Tolerance # ± Tol Grooves - Grooves # of Flange +.00 Hub Set Single Flange Double Flange O.D. O.D Screw 2T0800SFAHS 2T0800DFAHS #- T0800SFAHS T0800DFAHS #- 5T0800SFAHS 5T0800DFAHS #- T0800SFAHS T0800DFAHS #8-8T0800SFAHS 8T0800DFAHS /2" #8- T0800SFAHS T0800DFAHS /2" #- 2T0800SFAHS 2T0800DFAHS /2" #- T0800SFAHS T0800DFAHS /2" #- T0800SFAHS T0800DFAHS /2" #- 2T0800SFAHS 2T0800DFAHS #8-28T0800SFAHS 28T0800DFAHS #8- T0800SFAHS T0800DFAHS #8- T0800SFAHS T0800DFAHS #8-3T0800SFAHS 3T0800DFAHS #8- T0800SFAHS T0800DFAHS #8-2T0800SFAHS 2T0800DFAHS #8- T0800SFAHS T0800DFAHS #8-8T0800SFAHS 8T0800DFAHS #8-50T0800SFAHS 50T0800DFAHS #8-0T0800SFAHS 0T0800DFAHS #8-5T0800SFAHS 5T0800DFAHS #0-72T0800SFAHS 72T0800DFAHS #0-80T0800SFAHS 80T0800DFAHS #0-90T0800SFAHS 90T0800DFAHS #0-00T0800SFAHS 00T0800DFAHS #0-0T0800SFAHS 0T0800DFAHS #0- T0800SFAHS T0800DFAHS #0- T0800SFAHS T0800DFAHS #0- Materials: 0% Glass Filled Polycarbonate Hub: Aluminum Standard with () set screw Additional set screws and non-standard bore sizes available upon request. Danco Road, Putnam, CT 0 To Order Call Page 5

7 .08 (DP) Precision s Made of Delrin Sizes in Both Single and Double Flange Features: Operation: Positive slip proof engagement of belt and pulley assured. High mechanical efficiency with minimum backlash. Lightweight: s are about one-half the weight of aluminum allowing high speed operation without start and stop problems. Lower Cost: Low cost manufacturing techniques keep costs low without sacrificing quality. Prices substantially lower than conventional metal pulleys. Long Belt Life: Low coefficient of friction of Delrin adds life to belts. Precision molding assures quiet operation and minimum wear at high speeds. No lubrication is required. Wide speed ranges can be achieved. Tolerance Chart Size Diameter Eccentricity to OD (TIR) Total Indicated Reading Wobble Perpendicularity (Face to ) 0- Tooth ± Tooth ± Tooth ± Tolerance +.00/-.002 Danco Road, Putnam CT 0 To Order Call Page

8 .08 ( DP) Timing Belt s For Belts up to ¼ Wide Single Flange on Hub Side Part Number 0MSF MSF 2MSF MSF 5MSF # of Flange (FD) Stock (B) 3/ 3/ 3/ /8 /8 Hub (H) 8MSF 9MSF MSF 2MSF MSF MSF 28MSF MSF MSF 3MSF MSF 38MSF MSF 2MSF MSF Tolerance: +.00 / Material: Grey Delrin MSF 8MSF 50MSF 5MSF 5MSF 0MSF 70MSF 72MSF 75MSF 80MSF MSF 90MSF 9MSF 97MSF 98MSF MSF 00MSF 02MSF 0MSF MSF Danco Road, Putnam CT 0 To Order Call Page 7

9 .08 ( DP) Timing Belt s For Belts up to ¼ Wide Double Flange Part Number 0MDF MDF 2MDF MDF 5MDF # of Flange (FD) Stock (B) 3/ 3/ 3/ /8 /8 Hub (H) 8MDF 9MDF MDF 2MDF MDF MDF 28MDF MDF MDF 3MDF MDF 38MDF MDF 2MDF MDF Tolerance: +.00 / Material: Grey Delrin MDF 8MDF 50MDF 5MDF 5MDF MDF 70MDF 72MDF 75MDF 80MDF MDF 90MDF 9MDF 97MDF 98MDF MDF 00MDF 02MDF 0MDF MDF Danco Road, Putnam CT 0 To Order Call Page 8

10 /5 (XL) Timing Belt s Made of Lexan in 3 Sizes Never before have such a complete standard line of plastic pulleys been offered to industry. tolerance is held within.00 and Concentricity within.007 TIR (Total Indicated Reading). Plastock manufactures a complete range of 3 standard pulley sizes from 0XL037 thru 78XL037. Tolerance Chart Eccentricity Wobble to OD (TIR) Total Perpendicularity Size Diameter Indicated Reading (Face to ) 0-28 T T T Features Greater Precision than conventional plastic materials such as Nylon or Acetal. Lightweight pulleys are about one half the weight of aluminum pulleys. Long belt life achieved due to low coefficient of friction of plastic. No Lubrication Required Positive Slip-Proof Engagement of belt and pulley assured with high mechanical efficiency and minimum backlash. Non-Corrosive and Non-Conductive. Conforms to all Specifications of the Major Timing Belt Manufacturers. +.00/ Made of Delrin in 9 Sizes Features: Operation: Positive slip proof engagement of belt and pulley, assured. High mechanical efficiency with minimum backlash. Lightweight: s are about one-half the weight of aluminum allowing high speed operation without start and stop problems Lower Cost: Low cost manufacturing techniques keep costs low without sacrificing quality. Prices substantially lower than conventional metal timing pulleys. Long Belt Life: Low coefficient of friction of Delrin adds life to belts. Precision molding assures quiet operation and minimum wear at high speeds. No lubrication is required. Wide speed ranges can be achieved. The demand for economical plastic timing belt pulleys have been so great that PPM now has 9 various sizes of pulleys in both single and double flange. Danco Road, Putnam CT 0 To Order Call Page 9

11 /5 (XL) Timing Belt s For Belts up to Wide Single Flange on Hub Side Part No. 0XL037SF XL037SF 2XL037SF 3XL037SF XL037SF # Flange (FD) Stock (B) W L H 3/ 5XL037SF XL037SF 7XL037SF 8XL037SF 9XL037SF XL037SF 2XL037SF XL037SF 23XL037SF XL037SF Material: 0% Glass Filled Polycarbonate All Flanges / thick except 78XL which is XL037SF 2XL037SF 27XL037SF 28XL037SF 29XL037SF XL037SF 3XL037SF XL037SF 3XL037SF 35XL037SF XL037SF 37XL037SF 39XL037SF XL037SF 2XL037SF XL037SF 8XL037SF XL037SF XL037NF 72XL037NF 78XL037SF None None 5.9 3/ Danco Road, Putnam CT 0 To Order Call Page 0

12 /5 (XL) Timing Belt s For Belts up to Wide Part No. # Flange (FD) Stock (B) W L H Double Flange Material: 0% Glass Filled Polycarbonate 0XL037DF XL037DF 2XL037DF 3XL037DF XL037DF 5XL037DF XL037DF 7XL037DF 8XL037DF 9XL037DF XL037DF 2XL037DF XL037DF 23XL037DF XL037DF 25XL037DF 2XL037DF 27XL037DF 28XL037DF 29XL037DF XL037DF 3XL037DF XL037DF 3XL037DF 35XL037DF 3XL037DF 37XL037DF 39XL037DF XL037DF 2XL037DF XL037DF 8XL037DF / Danco Road, Putnam CT 0 To Order Call Page

13 /5 (XL) Timing Belt s For Belts up to Wide O.D. Tolerance # ± Tol tooth overall length Single Flange Double Flange # of Flange +.00 Hub Set Screw Single Flange Double Flange P.D. O.D XL037SFAHS 0XL037DFAHS XL037SFAHS XL037DFAHS XL037SFAHS 2XL037DFAHS XL037SFAHS 3XL037DFAHS XL037SFAHS XL037DFAHS XL037SFAHS 5XL037DFAHS XL037SFAHS XL037DFAHS XL037SFAHS 7XL037DFAHS XL037SFAHS 8XL037DFAHS XL037SFAHS 9XL037DFAHS XL037SFAHS XL037DFAHS XL037SFAHS 2XL037DFAHS XL037SFAHS XL037DFAHS XL037SFAHS 23XL037DFAHS XL037SFAHS XL037DFAHS XL037SFAHS 25XL037DFAHS XL037SFAHS 2XL037DFAHS XL037SFAHS 27XL037DFAHS XL037SFAHS 28XL037DFAHS XL037SFAHS 29XL037DFAHS XL037SFAHS XL037DFAHS XL037SFAHS 3XL037DFAHS XL037SFAHS XL037DFAHS XL037SFAHS 3XL037DFAHS XL037SFAHS 35XL037DFAHS XL037SFAHS 3XL037DFAHS XL037SFAHS 37XL037DFAHS XL037SFAHS 39XL037DFAHS XL037SFAHS XL037DFAHS XL037SFAHS 2XL037DFAHS XL037SFAHS XL037DFAHS XL037SFAHS 8XL037DFAHS Materials: 0% Glass Filled Polycarbonate Hub: Aluminum Color: Black Standard with () set screw - Additional set screws and non-standard bore sizes available upon request. Danco Road, Putnam, CT 0 To Order Call Page 2

14 /5 (XL) Delrin Timing Belt s For Belts up to Wide Single Flange on Hub Side Tolerance: +.00/-.002 Material: Grey Delrin Part No. 0XLSF XLSF 2XLSF XLSF 5XLSF XLSF 8XLSF XLSF 2XLSF XLSF # Flange Stock (B) Hub (H) XLSF 28XLSF XLSF XLSF 3XLSF XLSF 2XLSF XLSF 8XLSF Double Flange Tolerance: +.00/-.002 Material: Grey Delrin Part No. 0XLDF XLDF 2XLDF XLDF 5XLDF XLDF 8XLDF XLDF 2XLDF XLDF # Flange Stock (B) Hub (H) XLDF 28XLDF XLDF XLDF 3XLDF XLDF 2XLDF XLDF 8XLDF Danco Road, Putnam CT 0 To Order Call Page 3

15 (L) Series Timing Belt s Made of Lexan with Aluminum Hubs Tolerance Chart Eccentricity Wobble to OD (TIR) Total Perpendicularity Size Diameter Indicated Reading (Face to ) 0- T T T The L series of s offer the designer and engineer a substitute for the more expensive aluminum or metal. Since the loading of the L series Belt drives are greater than the conventional /5 (XL), Plastock has incorporated the aluminum insert as a standard in the design of this line of s. Advantages of this type of drive are as follows: Positive, slip proof engagement of belt and pulley Long belt life due to low coefficient of friction of plastic Conforms to all specifications of the major timing belt manufacturers HTD s and Belts The tooth profile of commonly known synchronous Belts is a trapezoid shape with sides being straight lines, which generate an involute, similar to that of a spur gear tooth. Unlike the spur gear however, the outside diameter of a timing is manufactured smaller than its pitch diameter, thus creating an imaginary pitch diameter that is larger than the itself. Backlash between and Belt teeth is negligible. The Plastock line of HTD (High Torque Drives) Belts and s are offered in 3mm and 5mm pitches. These drives are not necessarily used for high torque applications, but their other superior properties make them an excellent choice for small drives. Proportionally deeper tooth, therefore, tooth jumping or loss of relative position is less probable. Lighter construction, therefore, smaller centrifugal loss. Smaller unit pressure on the tooth since area of contact is larger. Greater shear strength due to larger tooth cross section. Lower cost since a narrower Belt will handle larger load. Energy efficient, particularly if it is replacing a V Belt drive which incurs energy losses due to slippage. Installation tension is small, therefore, light bearing loads. Danco Road, Putnam CT 0 To Order Call Page

16 (L) Lexan Timing Belt s For Belts and Wide Single Flange on Hub Side Tolerance: +.00/-.000 Part No. # For Belt Size Flange Stock (B) Width (W) OAL (L) Hub (H) 0L050SF 0L075SF 2L050SF 2L075SF L050SF L075SF 8L050SF 8L075SF L050SF L075SF L050SF L075SF 3L050SF 3L075SF L050SF L075SF / 9/ 9/ 9/ 9/ 9/ 9/ 9/ /8 -/8 -/8 -/8 -/8 -/8 -/8 -/8 -/8 -/8 -/8 -/8 Double Flange Tolerance: +.00/-.000 Part No. # For Belt Size Flange Stock (B) Width (W) OAL (L) Hub (H) 0L050DF 0L075DF 2L050DF 2L075DF L050DF L075DF 8L050DF 8L075DF L050DF L075DF L050DF L075DF 3L050DF 3L075DF L050DF L075DF / 9/ 9/ 9/ 9/ 9/ 9/ 9/ /8 -/8 -/8 -/8 -/8 -/8 -/8 -/8 -/8 -/8 -/8 -/8 Material: Lexan with Aluminum Hubs Danco Road, Putnam CT 0 To Order Call Page 5

17 3mm HTD Metric Lexan Timing Belt s For Belts up to 9mm Wide Single Flange on Hub Side All dimensions are in millimeters Part No. 7HTD3SF 8HTD3SF 9HTD3SF HTD3SF HTD3SF 25HTD3SF 28HTD3SF HTD3SF 3HTD3SF HTD3SF 8HTD3SF 0HTD3SF 72HTD3SF 80HTD3SF # Flange Stock (B) Hub (H) Fig. # Double Flange All Dimensions are in millimeters Part No. 7HTD3DF 8HTD3DF 9HTD3DF HTD3DF HTD3DF 25HTD3DF 28HTD3DF HTD3DF 3HTD3DF HTD3DF 8HTD3DF 0HTD3DF 72HTD3DF 80HTD3DF # Flange Stock (B) Hub (H) Fig. # Material: Lexan Note: s under teeth do not have webs. Diameter Over To Tolerance , , , , +.03 Danco Road, Putnam CT 0 To Order Call Page

18 5mm HTD Metric Lexan Timing Belt s For Belts up to 9mm Wide Single Flange on Hub Side All Dimensions are in millimeters Material: Lexan Part No. HTD5SF 2HTD5SF 3HTD5SF HTD5SF 5HTD5SF HTD5SF 7HTD5SF 8HTD5SF 9HTD5SF HTD5SF HTD5SF 25HTD5SF 28HTD5SF 29HTD5SF HTD5SF HTD5SF 50HTD5SF # Flange Stock (B) 8 8 Hub (H) Fig. # Double Flange All dimensions are in millimeters Material: Lexan Part No. # Flange HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF HTD5DF Note: s under teeth do not have webs Stock (B) 8 8 Hub (H) Fig. # Diameter Over To Tolerance , , , , +.03 Danco Road, Putnam CT 0 To Order Call Page 7

19 .0800 (MXL) PolyurethaneTiming Belts Belt Width /8 Material- and Body: Material Cord: Center Distance: Width: Belt Break Strength: Tooth Shear Strength: Specifications Urethane Hardness Shore A Polyester balanced Construction. 50 turns per inch of width Center distance tolerance ±.0 Customer should allow for.0 pulley adjustment. / wide to wide with a tolerance of ±.0 Polyester lbs. per / belt width in endless form. Approximately 5% of Belt Break Strength per tooth. Temperature Resistance: Continuous 0 F to 80 F. Intermittent: up to 250 F. Other widths available upon request Part No. Number of T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T Length Inches Part No. Number of 0T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T Length Inches Danco Road, Putnam CT 0 To Order Call Page 8

20 .0800 (MXL) PolyurethaneTiming Belts Belt Width Material- and Body: Material Cord: Center Distance: Width: Belt Break Strength: Tooth Shear Strength: Specifications Urethane Hardness Shore A Polyester balanced Construction. 50 turns per inch of width Center distance tolerance ±.0 Customer should allow for.0 pulley adjustment. / wide to wide with a tolerance of ±.0 Polyester lbs. per / belt width in endless form. Approximately 5% of Belt Break Strength per tooth. Temperature Resistance: Continuous 0 F to 80 F. Intermittent: up to 250 F. Other widths available upon request Part No. Number of T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T Length Inches Part No. Number of 0T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T Length Inches Danco Road, Putnam CT 0 To Order Call Page 9

21 .08 ( DP) PolyurethaneTiming Belts Belt Width /8 Belts are precision molded polyurethane elastomer that will not shrink or stretch. Superior flex. Excellent abrasion and ozone resistance. Polyester cord adds extra strength and load carrying capacities to the finished gear belt. Breaking point in an endless form wide belt is 0 lbs.; 00 lbs. for a wide belt. Safe in operating temperatures from minus to plus 50 F. Low coefficient of friction maintains constant pulley gear contact. Also available are special belts, which will withstand 900 lbs. ( wide belts). BELT DESCRIPTION. Material: The belt is molded from polyurethane elastomer. The polyurethane has excellent flex, abrasion and ozone resistance and is unaffected by most oils. The strength or load carrying member is polyester cord. The polyester cord gives high strength and high modulus to the finished gear belt. 2. Dimensions: The tooth pitch of the belt is.08 (distance from tooth to tooth when belt is flat). Example: A belt with 00 teeth has a pitch length of 00 x.08 or 8.. The tooth height is approximately.08 and the overall belt thickness is approximately Strength: The breaking strength of the gear belt in endless form one inch wide is 0 pounds. For a belt wide the strength is 00 pounds. TOLERANCES. Length: The standard length tolerance is ±.0 on center distance. Thus, drive designs should allow a minimum of ±.0 of center distance adjustment. 2. Width: The tolerance on slit width is ± /. Normal minimum slit width is /8. From /8 to the slit width increments are in ths of an inch. Part # Number of M02 33M02 35M02 M02 M02 5M02 8M02 50M02 5M02 52M02 53M02 55M02 5M02 57M02 58M02 0M02 M02 M02 5M02 9M02 70M02 72M02 73M02 75M02 7M02 80M02 8M02 85M02 89M02 90M02 9M02 95M02 9M02 97M02 98M02 00M02 02M02 05M02 0M02 5M02 Belt Length Inches Part # Number of M02 8M02 9M02 M02 M02 23M02 25M02 M02 3M02 M02 35M02 39M02 M02 3M02 M02 5M02 9M02 50M02 5M02 52M02 53M02 5M02 55M02 59M02 0M02 2M02 3M02 5M02 70M02 75M02 78M02 80M02 85M02 90M02 92M02 93M02 95M02 0M02 5M02 8M02 M02 Belt Length Inches Part # Number of M02 25M02 0M02 5M02 2M02 235M02 2M02 5M02 250M02 252M02 255M02 257M02 258M02 M02 M02 25M02 270M02 275M02 280M02 28M02 285M02 290M02 295M02 0M02 M02 3M02 3M02 3M02 3M02 350M02 M02 39M02 370M02 380M02 390M02 392M02 0M02 23M02 3M02 72M02 Belt Length Inches Other widths available upon request Danco Road, Putnam CT 0 To Order Call Page

22 .08 ( DP) PolyurethaneTiming Belts Belt Width Belts are precision molded polyurethane elastomer that will not shrink or stretch. Superior flex. Excellent abrasion and ozone resistance. Polyester cord adds extra strength and load carrying capacities to the finished gear belt. Breaking point in an endless form wide belt is 0 lbs.; 00 lbs. for a wide belt. Safe in operating temperatures from minus to plus 50 F. Low coefficient of friction maintains constant pulley gear contact. Also available are special belts, which will withstand 900 lbs. ( wide belts). BELT DESCRIPTION. Material: The belt is molded from polyurethane elastomer. The polyurethane has excellent flex, abrasion and ozone resistance and is unaffected by most oils. The strength or load carrying member is polyester cord. The polyester cord gives high strength and high modulus to the finished gear belt. 2. Dimensions: The tooth pitch of the belt is.08 (distance from tooth to tooth when belt is flat). Example: A belt with 00 teeth has a pitch length of 00 x.08 or 8.. The tooth height is approximately.08 and the overall belt thickness is approximately Strength: The breaking strength of the gear belt in endless form one inch wide is 0 pounds. For a belt wide the strength is 00 pounds. TOLERANCES. Length: The standard length tolerance is ±.0 on center distance. Thus, drive designs should allow a minimum of ±.0 of center distance adjustment. 2. Width: The tolerance on slit width is ± /. Normal minimum slit width is /8. From /8 to the slit width increments are in ths of an inch. Part # Number of M025 33M025 35M025 M025 M025 5M025 8M025 50M025 5M025 52M025 53M025 55M025 5M025 57M025 58M025 0M025 M025 M025 5M025 9M025 70M025 72M025 73M025 75M025 7M025 80M025 8M025 85M025 89M025 90M025 9M025 95M025 9M025 97M025 98M025 00M025 02M025 05M025 0M025 5M025 Belt Length Inches Part # Number of M025 8M025 9M025 M025 M025 23M025 25M025 M025 3M025 M025 35M025 39M025 M025 3M025 M025 5M025 9M025 50M025 5M025 52M025 53M025 5M025 55M025 59M025 0M025 2M025 3M025 5M025 70M025 75M025 78M025 80M025 85M025 90M025 92M025 93M025 95M025 0M025 5M025 8M025 M025 Belt Length Inches Part # Number of M025 25M025 0M025 5M025 2M M025 2M025 5M M M M M M025 M025 M025 25M M M M025 28M M M M025 0M025 M025 3M025 3M025 3M025 3M M025 M025 39M M M M M025 0M025 23M025 3M025 72M025 Belt Length Inches Other widths available upon request Danco Road, Putnam CT 0 To Order Call Page 2

23 /5 (XL) Polyurethane Timing Belts SPECIFICATIONS Material and Body: Urethane Hardness Shore A Material-Cord: Polyester balanced construction. 28 turns per inch of width. Available with Kevlar reinforcement Construction in lieu of Polyester. Center Distance: Center distance tolerance ±.0. Customer should allow for.0 pulley adjustment. For closer tolerance, specify Kevlar cord. Width: /8 inch wide to inch wide with a tolerance of ±.0 Belt Break Strength: Polyester 00 lbs. per /8 belt width in Endless form. Kevlar 50 lbs. per /8 belt width in Endless form. Tooth Shear Strength: Approximately 5% of Belt Break Strength per Tooth. Temperature Resistance: Continuous 0 F to 80 F. Intermittent: up to 250 F. Belt width Belt width Belt Part # Length Number of # of Inches Part # Number of 50XL025 0XL025 70XL025 80XL025 90XL025 9XL025 9XL025 00XL025 0XL025 XL025 XL025 XL025 50XL025 0XL025 XL025 70XL025 80XL025 90XL025 0XL025 XL025 0XL025 2XL025 2XL XL025 XL XL XL XL025 0XL025 3XL XL025 XL025 XL025 # of XL037 0XL037 70XL037 80XL037 90XL037 9XL037 9XL037 00XL037 0XL037 XL037 XL037 XL037 50XL037 0XL037 XL037 70XL037 80XL037 90XL037 0XL037 XL037 0XL037 2XL037 2XL XL037 XL XL XL XL037 0XL037 3XL XL037 XL037 XL Belt Length Inches Other widths available upon request Danco Road, Putnam CT 0 To Order Call Page

24 (L) Neoprene Timing Belts SPECIFICATIONS Material: Nylon covered fiber Reinforced Neoprene. Temperature Range: to + 85 F Part # Number of 33L050 L050 50L050 5L050 0L050 L050 8L050 72L050 7L050 80L050 8L050 92L050 98L050 0L050 2L050 L050 28L050 3L050 L050 0L050 # of Belt width Belt width Belt Part # Belt Length Number of # of Length Inches Inches L075 L075 50L075 5L075 0L075 L075 8L075 72L075 7L075 80L075 8L075 92L075 98L075 0L075 2L075 L075 28L075 3L075 L075 0L Other widths available upon request Danco Road, Putnam CT 0 To Order Call Page 23

25 3mm HTD Metric Neoprene Timing Belts SPECIFICATIONS Material: Nylon Covered, Fiberglass Reinforced Neoprene Breaking Strength: 2. KGS per mm Belt Width Temperature Range: -8 C to +85 C The jacket size of the 3mm and 5mm Belts is the same as the one used on the pitch L Belts. The reinforcing cord of the 3mm pitch belts is of the same diameter (.023) and winding density (2/inch) as the cord in the /5 pitch XL and pitch L Belts. The reinforcing cord of the 5mm pitch Belts is nearly of the same diameter (.02 vs..050) as the one used in the pitch H Belts. The allowable working tension of the 3mm pitch Belt is (0 lbs. /inch) higher than that of the pitch Belts (55 lbs./inch). The allowable working tension of the 5mm pitch Belt Is (00 lbs. /inch) nearly double that of the pitch Belts (55 lbs./inch). Other widths available upon request All dimensions above are in millimeters Belt width mm Part # of Belt Number Length 50HTD HTD HTD HTD HTD HTD3 7 7HTD HTD HTD HTD HTD HTD HTD HTD HTD3 0 0HTD HTD HTD HTD HTD HTD HTD HTD3 9HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD Belt width 9mm Part # of Belt Number Length 50HTD HTD HTD HTD HTD HTD39 7 7HTD HTD HTD HTD HTD HTD HTD HTD HTD39 0 0HTD HTD HTD HTD HTD HTD HTD HTD39 9HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD Danco Road, Putnam CT 0 To Order Call Page

26 5mm HTD Metric Neoprene Timing Belts SPECIFICATIONS Material: Nylon Covered, Fiberglass Reinforced Neoprene Breaking Strength: 2 KGS per mm Belt Width Temperature Range: -8 C to +85 C The jacket size of the 3mm and 5mm Belts is the same as the one used on the pitch L Belts. The reinforcing cord of the 3mm pitch belts is of the same diameter (.023) and winding density (2/inch) as the cord in the /5 pitch XL and pitch L Belts. The reinforcing cord of the 5mm pitch Belts is nearly of the same diameter (.02 vs..050) as the one used in the pitch H Belts. The allowable working tension of the 3mm pitch Belt is (0 lbs. /inch) higher than that of the pitch Belts (55 lbs./inch). The allowable working tension of the 5mm pitch Belt is (00 lbs. /inch) nearly double that of the pitch Belts (55 lbs./inch). Belt width mm Part # of Belt Number Length 70HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD Belt width 9mm Part # of Belt Number Length 70HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD HTD Other widths available upon request All dimensions above are millimeters Danco Road, Putnam CT 0 To Order Call Page 25

27 Plastic Roller Chain Plastic chains were developed primarily for low-power transmission applications. The chains can be used with steel sprockets or plastic sprockets, and are suitable for relatively wide speed ranges. These drive components can be especially useful in harsh chemical, moisture and temperature environments. The chains can incorporate additives for self-lubrication, also useable where cleanliness is important, as in food-processing machinery, computer equipment. Chains are made with links that snap together so that each link in effect becomes a master link. Various attachments can be used with plastic chains and sprockets. These attachments can be fastened to the chain or sprocket, or molded integrally. Plastic chains are available as off the shelf items in /-in., 3/8-in. and /2-in. pitches. Non-standard sizes and shapes including chain with various types of attachments have been developed for special applications. Plastic chains and sprockets are generally about one-fifth to on-tenth as heavy as equivalent metal components. They are relatively quiet, and are nonconductive and nonmagnetic. GENERAL CHARACTERISTICS Horsepower ratings have not been determined for all sizes of plastic chains. However, the chain performance data chart shows the results for breaking strength of the representative chain sizes. Working strength is often figured as /3 of the average breaking strength. Elongation vs. time tests have shown that the major portion of elongation or stretch occurs almost immediately after the load is applied; 90 percent of elongation takes place within the first 5 minutes of operation. Based on total length, subsequent elongation is less than 0.3 percent. When the load is removed, the chain recovers as a function of time and material. In general, maximum recovery is achieved within minutes of load removal. PRODUCT DESIGN Plastic chain is produced in three standard pitch sizes, /, 3/8 and /2 inch. Key roller and linkage dimensions can be seen below. Specialty pitch designs available. Cat. Dimensions No. W D C F L H #25 / / #35 3/8 3/ # /2 5/ Danco Road, Putnam CT 0 To Order Call Page 2

28 Plastic Roller Chain MATERIAL DATA In order to meet the range of strength, chemical and heat resistance requirements of the marketplace, Plastock offers chains and sprockets molded from four standard materials: Polypropylene, Delrin (Acetal), Kynar PVDF and Nylatron GS molybdenum disulfide filled nylon. Performance data on the base polymer products described below should be used in the selection of the specific material for the application involved. Strength: Tensile (PSI) Compressive (PSI) Flexural (PSI) Elongation % Water Absorption % hrs. /8 thick Heat Deflection PSI, of Resistance: Effect of Weak Acids Strong Acids Weak Alkalies Strong Alkalies Organic Solvent Nylatron GS Acetal Polypropylene Kynar PVDF 3,700 2,500 7, resistant attacked none resistant resistant to common solvents 9,700 5,00 3, resistant some resistant resistant resistant to most,500 5,500, none attacked slowly by oxidizing acids none very resistant resistant below 80 C,500 8,000 8, very resistant very resistant very resistant attacked resistant to most NOTE: All values are typical for material and should only be used as a guide in selecting appropriate material. Application testing is strongly recommended. Tensile Break Elongation % 75% Tensile Strength Elongation Recovery Removal of Load After 0 Minutes After Minutes CHAIN PERFORMANCE DATA #25 Chain #35 Chain # Chain 25D 25PP 25N 25K 35D 35PP 35N 35K D PP N K NOTE: Data generated by an independent testing lab. Values should only be used as a guideline. Application testing is strongly recommended. NOTE: D- Delrin; PP Polypropylene; N Nylatron; K - Kynar Danco Road, Putnam CT 0 To Order Call Page 27

29 Plastic Chain and Sprockets ADVANTAGES Lightweight: 5-% the weight of stainless steel components Lubrication: Requires no lubrication. Can be formulated to be non conductive, conductive or non magnetic Master Links: All links on the plastic chain are unit master links since all links snap together and all chains are adjustable to any length desired Interchangeable: Completely with existing metal chain and sprocket drives. Plastic chain can be used with steel sprockets or Plastic Sprockets Noise: Noise levels are greatly reduced Chemical Resistance: Excellent chemical and solvent resistance to corrosive environmental conditions Cleanliness: Excellent where cleanliness of drive is important Design Capabilities: Various attachments as side link pins can be incorporated into design at minimal tooling costs Strength: Function of size and material selection. Consult charts for specific data. APPLICATIONS: Food handling and processing equipment Computer and computer peripheral equipment Office machines, copy machines, etc. Point of motion, advertising displays Any equipment requiring transmission of motion at light loads Mechanical drives for instrumentation Plating and coating operations Film processing/development equipment Semiconductor processing Electrically conductive applications Tolerances: to M.D. or P.D. TIR dia. = dia. = dia. = dia. = dia. = & up =.025 Max face to face runout dia. = dia. = dia. = & up =.0 Danco Road, Putnam CT 0 To Order Call Page 28

30 Plastic Type B Hub Sprockets Tolerance +.00/-.002 For #25 - Roller Chain in Delrin Part No. # Outside 0TS TS TS 5..3 TS TS TS TS TS TS TS TS TS TS TS TS Minor Stock Hub 7/ Tolerance: +.002/ For #25 - Roller Chain in Glass Filled Nylatron GS-5 Part No. # Outside Minor Stock 25B B B B B B B B B B B B B B B B B B B B B B Hub Dia 9/ 9/ 29/ -/ -5/ -5/ -5/ -7/ -7/ -7/ -9/ Hub Proj. One or Two set screws are optional. On special order, above sprockets are available in glass filled Polypropylene, Kynar and Glass Filled Delrin Danco Road, Putnam CT 0 To Order Call Page 29

31 Plastic Type B Hub Sprockets Tolerance +.002/-.000 For #35 - Roller Chain in Glass Filled Nylatron GS-5 Part No. # Outside Hub Minor 35B9 35B0 35B 35B2 35B 35B5 35B 35B8 35B 35B 35B2 35B 35B35 35B3 35B 35B / / Length Thru Max 9/ -/ Stock For # - Roller Chain in Glass Filled Nylatron GS-5 Part No. # Outside Hub Minor Length Thru B9 B0 B2 B5 B B B / Max. 9/ 27/ Stock Tolerance: +.002/ One or Two set screws are optional. On special order, above sprockets are available in glass filled Polypropylene, Kynar and Glass Filled Delrin Note: Rebores and Keyways can be furnished where required. Danco Road, Putnam CT 0 To Order Call Page

32 Gear Terminology Circular is the distance between corresponding points on adjacent teeth measured along the pitch circle. Diameter is the diameter measured at the pitch circle. Pressure Angle is the angle made by a line tangent to the gear tooth at the pitch diameter and a line drawn through this point of tangency. Addendum is the length of the tooth from the pitch line to the outside diameter Dedendum is the length of the tooth from the pitch line to the base of the tooth. Face Width is the working surface of the tooth above the pitch line. Center distance is the distance between the centers of two meshing gears. 8 Circular Addendum Dedendum Whole Depth Pressure Angle: Meshing gears must have the same pressure angle as well as the same diametrical pitch. The -degree full depth tooth is recommended for molded gears. It is stronger than the -/2 degree tooth and the wear characteristics of the -degree full depth tooth are improved over the -degree stub tooth. Backlash: Gears, like other moving mechanical parts, require operating clearance between the engaging teeth on the pitch circle. The extending of the center distance of meshing gears usually provides this. This has the advantages of allowing more clearance between the outside diameter of one gear and the base diameter of the mating gear so that the gears can expand at high temperatures without radial interference. For higher temperature, loads or speeds, additional backlash should be provided to compensate for thermal expansion. Danco Road, Putnam CT 0 To Order Call Page 3

33 Delrin Spur Gears - Pressure Angle - Pressure Angle Part No. # of O.D. P.D. Hub Dia / 9/ 9/ * Tolerance +.00/-.002 Tolerance +.00/-.002 AGMA Quality 5 Part No. # of O.D. P.D. Hub / 3/ 35/ 35/ 35/ 35/ 35/ 35/ 35/

34 Delrin Spur Gears - Pressure Angle - Pressure Angle Part No # of O.D. P.D Hub Dia 5/ 9/ 9/ * Tolerance +.00/-.002 AGMA Quality 5 Part No. # of O.D. P.D. Hub / 3/ 35/ 35/ 35/ 35/ 35/ 35/ 35/ * Tolerance +.00/-.002 Danco Road, Putnam CT 0 To Order Call Page

35 Delrin Spur Gears - Pressure Angle 8 - Pressure Angle Part No. # of O.D. P.D. Hub Dia / 5/ 5/ 5/ 5/ 9/ / / 5/ 9/ 9/ 9/ * Tolerance +.00/-.002 * Tolerance +.00/-.002 AGMA Quality 5 Part No. # of O.D. P.D. Hub / 5/ 5/ 5/ 5/ 5/ 5/ 5/ 5/ 5/ 5/ 5/ 5/ / / 3/ 3/ 29/ 29/ 3/ 3/ 35/ 35/ 35/ 35/ 35/ 35/ 35/ 35/ 35/ 35/ 35/ 35/ 35/ Danco Road, Putnam CT 0 To Order Call Page 33

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