Ball Transfer Units RE / The Drive & Control Company

Transcription

1 Ball Transfer Units RE / Te rive & Control Company

2 Rexrot Linear Motion Tecnology Ball Rail Systems Roller Rail Systems Linear Busings and Safts Screw rives Standard Ball Rail Systems Super Ball Rail Systems Ball Rail Systems wit Aluminum Runner Blocks ig-speed Ball Rail Systems Corrosion-Resistant Ball Rail Systems Wide Ball Rail Systems Ball Rail Systems wit Integrated Measuring System Clamping and Braking Units for Ball Rail Systems Rack and Pinion for Ball Rail Systems Miniature Ball Rail Systems Cam Roller Guides Standard Roller Rail Systems Wide Roller Rail Systems eavy uty Roller Rail Systems Roller Rail Systems wit Integrated Measuring System Clamping and Braking Units for Roller Rail Systems Rack and Pinion for Roller Rail Systems Linear Busings, Linear Sets Safts, Saft Support Rails, Saft Support Blocks Ball Transfer Units Traditional Engineering Components Linear Motion Systems Linear Motion Slides Ball Screw rive Tooted Belt rive Linear Modules Compact Modules Precision Modules Ball Rail Tables Ball Screw rive Tooted Belt rive Rack and Pinion rive Pneumatic rive Linear Motor Ball Screw rive Tooted Belt rive Linear Motor Ball Screw rive Ball Screw rive Linear Motor Controllers, Motors, Electrical Accessories Linear Actuators RE /

3 Ball Transfer Units Product Overview 4 Tecnical ata 6 Tables 10 Ball Transfer Units wit Seet Steel ousing Ball Transfer Units wit Plastic Load Ball Ball Transfer Units, Spring-Loaded Ball Transfer Units wit Solid Steel ousing Ball Transfer Units witout ousing Ball Transfer Units wit Reinforced Seet Steel ousing Ball Transfer Units wit Spring Clip Ball Transfer Units wit Plastic ousing Tolerance Ring / Mounting Tools 18 3 RE /

4 Ball Transfer Units Product Overview Ball Transfer Units make ligt work of sifting, rotating and directing unit loads. Tey ave proven extremely valuable as integral parts of conveyor systems, feed devices, and macining and packaging equipment. Applications General-Purpose Macines Feed tables for seet-metal working macines Fixtures for press brakes Feed devices for macining centers rilling macine tables and motor-driven supporting tables Assembly aids in te manufacture of large engines and motors Materials-andling Systems Transfer ball tables, turntables and switces for sorting and distribution systems Crossover sections of continuous conveyors Baggage sorting systems at airports Transport of steel tubes and pipes Lifting platforms Oter Fields Construction of special-purpose macines Aerospace industry Nuclear reactors Beverage and stone-processing industries Ball Transfer Units wit seet steel ousing smallest ball transfer unit for general applications wit plastic load ball suitable particularly for transporting sensitive materials suc as glass, polised aluminum, brass and steel seets spring-loaded supported on springs and mounted under preload in a ousing Ball Transfer Unit recedes into its ousing wen overloaded wit steel ousing solid steel ousing witout felt seal very smoot movement wit steel ousing solid steel ousing and cover for very ig loads wit steel ousing solid steel ousing for eavy loads RE /

5 Easy mounting and extraction Types for all standard applications and for many special solutions Precise rolling and full loadbearing capability in any mounting orientation Smoot running Conveying speed up to 2 m/sec in all types ig rationalization effect Consistently ig quality Ball Transfer Units witout ousing low space requirement simple mounting mounting via oles in te collar wit seet steel ousing reinforced ousing and cover for eavy impact loads wit spring clip easily mountable and extractable from te load side. Fixing is by means of spring clips, wic permit generous tolerances in te mounting ole wit plastic ousing for special applications wit plastic ousing especially suited for overead installation ball recedes totally into ousing reinforced cover to witstand eavy impact loads 5 RE /

6 Ball Transfer Units Tecnical ata Structural design of te Ball Transfer Units Ball Transfer Units ave a steel ousing incorporating a ardened ball cup. Te latter serves as a raceway for a multitude of small supporting balls. Te supporting balls roll against te ball cup wen te load ball turns. Ball Transfer Units are designed so tat precise rolling and full load-bearing capability are ensured in any mounting orientation. Ball Transfer Units require little maintenance, and almost every type is protected against dirt by an oil-soaked felt seal. Felt seal Supporting ring Load ball Ball retaining ring Cover Reinforcing ring Ball cup Supporting ball ousing Ball Transfer Units in corrosionpreventive design Corrosion, caused by moisture or cemical attack, can lead to impaired functioning or even failure of te Ball Transfer Units. Coated (galvanized + cromated) surfaces similar to IN and IN and/ or iger-grade materials offer enanced anticorrosion protection. Galvanized covers and ousings offer simple protection against corrosion. In tis type, te supporting balls and load balls are made from standard antifriction bearing steel and are protected from corrosive attack by te lubricant. Galvanized internals, corrosionresistant steel balls Consistent coating of all internals and te use of corrosion-resistant steels for te antifriction bearing elements, similar to ISO , ensures compreensive corrosion protection suc as specified in ASTM B All parts made from rust and acid resistant steel (Antifriction bearing steel to EN ) Tis type is selected if te conveyed articles are abrasive and/or tere is exposure to an aggressive environment, especially to cemicals. Since all versions ave been designed to meet te ig standards of ISO 281, even tis type is unsuitable for underwater use. RE /

7 Mounting possibilities Application example Ball Transfer Units used for assembling ball rail system runner blocks 7 RE /

8 Ball Transfer Units Tecnical ata Arrangement of te Ball Transfer Units ow te Ball Transfer Units sould be arranged depends on te undersurface of te conveyed article. For articles wit a uniform, smoot undersurface, suc as boxes and cases, te distance between te Ball Transfer Units is calculated simply by dividing te smallest edge lengt by 2.5. Example: Undersurface of te conveyed article = 500 x 1000 mm istance between Ball Transfer Units 500 mm a = = 200 mm 2.5 a etermining te load for Ball Transfer Units To determine te load for a Ball Transfer Unit, te mass of te conveyed article is divided by 3. If te load ball eigt tolerances are wellcorrelated, it is possible, depending on te nature of te conveyed article, to also perform te calculation based on te number of load-bearing Ball Transfer Units. Example: Mass = 3000 N Ball Transfer Unit load 3000 N F = = 1000 N 3 F Spring-loaded Ball Transfer Units Te figures in te column eaded Preload are most important wen coosing te size for tese types. Te mass of te conveyed article is divided in tis case by te number of load-bearing Ball Transfer Units. Conveying speed V max = 2 m/sec Load Te stated load capacities apply to all mounting orientations and relate to 10 6 rotations of te load ball. In case of prolonged periods of use at speeds above 1 m/sec, an increase in temperature and reduced nominal life must be expected as a function of te load, especially for sizes 60 to 90. RE /

9 Calculation of te nominal life C ( F) 3 L = 10 6 L= Nominal life (rotations) C= Load [N] F= Load [N] Friction coefficients Te diagram sows te friction coefficients of Ball Transfer Units as a function of load and speed. Tese guideline values apply to any mounting orientation for rolling contact on a ardened steel plate. µm v = 1 m/s Upper limit Mean value Lower limit F C Operating temperature Ball Transfer Unit wit steel load ball: Ball Transfer Unit wit plastic load ball: up to 100 C. At temperatures above 100 C, only nongalvanized load balls witout a felt seal sould be used. Make allowance for reduction in load. up to 30 C. At temperatures above 30 C, make allowance for reduction in load. Use ig-temperature lubricant! Observe te manufacturer s instructions! Te existing lube oil may ave to be wased out. Temperature factor for steel load ball: for plastic load ball: Temperature C f T Temperature factor Temperature Temperature factor Te load must be multiplied by te temperature factor. C f T Lubrication Te lubrication must be adapted to te conveyed articles and to te ambient conditions. Te lubricant (oil) can be introduced via te load ball. 9 RE /

10 Ball Transfer Units Tables Ball Transfer Units wit Seet Steel ousing for general applications a b 1 Part numbers Execution imensions [mm] Load Mass 1 a b C )*) ± ± )*) ± ± ) Cover and ± ± ) ousing ± ± ) galvanized ± ± ) ± ± )*) ± ± )*) All parts galvanized, ± ± ) balls made from ± ± ) corrosion-resistant ± ± ) steel ± ± ) ± ± )*) ± ± )*) All parts made ± ± ) from corrosion ± ± ) resistant steel ± ± ) ± ± Ball Transfer Units wit Plastic Load Ball suitable for conveying sensitive articles Part numbers Execution imensions [mm] Load Mass 4) 1 a b C )*) ± ± )*) Cover and ± ± ) ousing ± ± ) galvanized ± ± ) ± ± )* ) ± ± )* ) All parts galvanized, ± ± ) load balls made ± ± ) from corrosion ± ± ) resistant steel ± ± )*) ± ± )* ) All parts made ± ± ) from corrosion ± ± ) resistant steel ± ± ) ± ± ) Witout felt seal 2) Bottom oles for dirt discarge against surcarge 3) ry felt seal 4) At 20 C * ) Available as of October 2003 RE /

11 Spring-loaded Ball Transfer Units supported on springs and mounted under preload in a ousing Ball Transfer Unit recedes into its ousing wen overloaded a 1 Part numbers Execution imensions [mm] Pre- Ulti- Tol. for pre- Mass load mate load and 1 a load 1) ult. load [N] [N] [%] [kg] Cover and ± / ousing ± / galvanized ± / All parts galvanized, ± / balls made from cor ± / rosion-resistant steel ± / ) Galvanized ± / ) Under ultimate load te Ball Transfer Unit recedes completely. 2) Wit elical spring 11 RE /

12 Ball Transfer Units Tables Ball Transfer Units wit Solid Steel ousing witout collar witout felt seal very smoot movement Part number Execution imensions [mm] Load Mass C Brigt metal ± ~ ± Ball Transfer Units wit Solid Steel ousing witout ig collar witout felt seal very smoot movement 1 a recedes partially into ousing Part number Execution imensions [mm] Load Mass 1 1 a C Brigt metal ± ± 0.1 ~ ± ± 0.2 7± Ball Transfer Units wit Solid Steel ousing wit low collar witout felt seal 1 1 very smoot movement recedes totally into ousing a Part number Execution imensions [mm] Load Mass 1 1 a C Brigt metal ± ~3 4.5 ± RE /

13 Ball Transfer Units wit Solid Steel ousing wit collar (wit felt seal) b for ig loads a 6 M8 x1 1 Part numbers Execution 1) imensions [mm] Load Mass 1 a b C Brigt metal ± ± Cover and ousing ± ± galvanized All parts galvanized, balls made from cor ± ± rosion-resistant steel 1) Upon request, available wit lube ole (0533 x61 x0) Ball Transfer Units wit Solid Steel ousing wit collar plastic seal for eavy soiling for ig loads Z Z a b 1 M8x1 Part number Execution imensions [mm] Load Mass 1 a b C Cover and ousing ± ± galvanized 13 RE /

14 Ball Transfer Units Tables Ball Transfer Units wit Solid Steel ousing witout collar (wit felt seal) for ig loads Part numbers Execution imensions [mm] Load Mass C ) ± ± Brigt metal 2) ± ± ) Upon request, available wit lube ole 2) Lube ole R1/8 (at center of base) closed by screw plug Ball Transfer Units wit Solid Steel ousing witout collar for ig loads plastic seal for eavy soiling relubrication bores mounting oles B - B dia.15 dia. 125 R 1/8" A-A A A B 30 dia. 9 R 1/8" 120 (3x) B 60 (6x) Part number Execution imensions [mm] Load Mass C Brigt metal ± ± RE /

15 Ball Transfer Units witout ousing low space requirement d Tk simple mounting mounting via oles in te collar a 1 Part numbers Execution imensions [mm] Load Mass Mounting oles C 1 a d Tk Number Cover and ball cup ± galvanized All parts galvanized, balls made from cor ± rosion-resistant steel Ball Transfer Units wit Reinforced Seet Steel ousing for extreme impact loads Te special sape of te cover requires te use of a mounting tool, particularly if firmly lodged see Mounting Tools. b eavy duty version 0535-X Part numbers Execution imensions [mm] Load Mass 1 b C ± ± Cover and ± ± ousing ± ± galvanized ± ± ± ± ± ± All parts galvanized, ± ± balls made from ardened ± ± corrosion-resistant steel ± ± ± ± Ball cup, balls and ball retaining ) ring made from corrosion-resistant ± ± steel. Oter parts galvanized. 1) Wit oles in base for dirt discarge 15 RE /

16 Ball Transfer Units Tables Ball Transfer Units wit Spring Clip easily mountable and extractable from te load side. Fixing is by means of spring clips, wic permit generous tolerances in te mounting ole. reinforced cover to witstand eavy impact loads types wit plastic load ball Te special cover sape requires use of mounting tool see Mounting Tools. 1 b s B Part numbers Execution imensions [mm] Load Mass Mounting cutout dia. S 1) C 1 b B min Cover and ± ousing ± galvanized ± All parts galvanized, ± balls made from ± corrosion-resistant ± ) steel ± Cover and ousing ± galvanized, wit ± plastic load ball ± ) Minimum nominal tickness of mounting base 2) Wit oles in base for dirt discarge RE /

17 Ball Transfer Units wit Plastic ousing dia. 30 for ligtweigt ball transfer tables 5 18 dia dia. 35 Part number Execution imensions [mm] Load Mass C Mounting wit quarter-turn fastener Ball Transfer Units wit Plastic ousing M50 x 1.5 M10 especially suited for overead installation ball recedes totally into ousing Part number Execution imensions [mm] Load Mass C eigt-adjustable, mounting wit treaded busing 17 RE /

18 Ball Transfer Units Tolerance Ring / Mounting Tools Tolerance Ring Tolerance ring b Tolerance ring 1 Ball Transfer Unit imensions Tolerance ring Mounting dimensions Part numbers [mm] Part numbers [mm] 1 b Mounting Tool 0536 for Ball Transfer Units 0535 and 0536 Part imensions for numbers [mm] a 2 3 t min [ ] t α Extraction Tool Recommended for Ball Transfer Units 0536 imensions [mm] for 1) B 1) max max B 1) Suitable for te recesses in te collar of te Ball Transfer Unit 0536 RE /

19 Sketc 19 RE /

20 Bosc Rexrot AG Linear Motion and Assembly Tecnologies Ernst-Sacs-Strasse Scweinfurt, Germany Telepone Telefax (general) Telefax (direct) Internet Great care as been taken during te compilation of tis publication to ensure all te information contained is accurate. We accept no responsibility owever for any damage resulting from incorrect or incomplete information contained. For deliveries and oter services in te course of commercial business, te general terms and conditions for supplies and services contained in te valid price lists and te confirmations of order apply. As our products are constantly in te process of furter development, tey are subject to alteration witout notice. STAR, Ball Rail and are trademarks registered for Rexrot Star Gmb, Germany. Roller Rail is a trademark of Rexrot Star Gmb, Germany. Reproduction of tis document, even in extract form, is only permitteit our approval. Ball Transfer Units RE / Printed in Germany p 2004/xx/xx/X