Planetary and Right Angle

Transcription

1 Planetary and Right Angle Gearboxes Precision gearboxes Economical precision gearboxes. Can be supplied with interfaces to complement the intelligent Reliance Cool Muscle Motor. Planetary Gearboxes Standard backlash 4 / (single stage) 40/0mm square Ratios : to : Lubricated for life Suits NEMA 7 or motor Planetary Gearboxes Low backlash / 70mm square Ratios : to 0: Lubricated for life Suits NEMA motor Hypoid & Bevel Gearboxes Single and double shaft Ratios : and : Epicyclic Modules A selection of Matex epicyclic modules. Units range from to 4Nm. 7mm outside diameter with an output torque upto Nm

2 Section Contents Planetary Gearboxes Overview...Page Planetary Gearboxes RGP40 Series...Page 4 Planetary Gearboxes RGP0 Series...Page Planetary Gearboxes RGPN70 Series...Page Planetary Gearboxes Interface Detail...Page Planetary Gearboxes with Reliance Cool Muscle...Page Bevel Gearboxes Overview...Page Hypoid Gearboxes...Page 4 Bevel Gearboxes...Page Epicyclic Modules...Page Planetary and Right Angle Gearboxes For Technical Information please see Page T

3 Overview Planetary Gearboxes RGP40, RGP0 Output shaft High strength one piece planet carrier and output shaft Output shaft bearing Deep groove ball bearings with contact seals standard backlash (RGP40 from <4 ) (RGP0 from < ) high output torque novel motor clamp system high efficiency (9%) ratios i=,..., low noise high quality any mounting position easy motor mounting lifetime lubrication direction of rotation equidirectional options available Planet gear Precision zero helix angle gear with optimised profile modification and crowning, case hardened and hard finished by honing 4 Housing with integrated ring gear Ring gear case hardened for high load capacity, minimum wear, consistent backlash Sun gear Precision machined optimised gear profile, case hardened and honed for higher load capacity, low noise, minimum wear and consistent backlash Bearing for sun gear High speed, deep groove ball bearings eliminating thrust loads from thermal expansion, whilst providing exact sun gear position for easy mounting 7 Motor adaptor plate Allows matching up of the gear head with NEMA 7 and motors, made of aluminium for enhanced thermal conductivity (other adaptors and motors on request) Clamping ring Balanced ring suitable for high rpm, made from steel to allow greater clamping forces for safe torque transfer 9 Clamping screw High strength steel with special low pitch thread to generate a greater clamping force Motor shaft clamp Multiple closed slot precision clamping system for improved reliability Assembly hole Access bore for the clamping screw

4 Planetary Gearboxes Overview RGPN70 low backlash (< ) high output torque novel motor clamp system high efficiency (9%) honed gearing ratios i=,...,0 low noise (< db) high quality any mounting position easy motor mounting lifetime lubrication direction of rotation equidirectional options available Output shaft High strength, one piece planet carrier and output shaft Output shaft bearing High precision, preloaded taper roller bearings for zero clearance Sealing ring Dedicated double lip seal. The lubricant is kept in while contaminants remain outside the gearbox; IP 4 Planet gear Precision zero helix angle gear with optimised profile modification and crowning, case hardened and hard finished by honing Sun gear Precision machined optimised gear profile, case hardened and honed for higher load capacity, low noise, minimum wear and consistent backlash Bearing for sun gear High speed, deep groove ball bearings eliminating thrust loads from thermal expansion, whilst providing exact sun gear position for easy mounting 7 Housing with integrated ring gear Ring gear case hardened for high load capacity, minimum wear, consistent backlash Motor adaptor plate Allows matching up of the gearhead with NEMA motors, made of aluminium for enhanced thermal conductivity (other adaptors and motors on request) 9 Clamping ring Balanced ring suitable for high rpm, made from steel to allow greater clamping forces for safe torque transfer Clamping screw High strength steel with special low pitch thread to generate a greater clamping force Motor shaft clamp Precision clamping system for improved reliability Assembly hole Access bore for the clamping screw

5 RGP40 Series Planetary Gearboxes All dimensions in mm Associated Products Reliance Cool Muscle: page Couplings: page Hardware: page number selection table See page for motor mount details Example No: RGP40 0 NEMA7 Basic RGP40 RGP40 RGP40 Ratio of Stages L Output Torque Inertia L L NEMA 7 NEMA Nominal Max mm mm mm mm Nm () Nm kgcm

6 Planetary Gearboxes RGP40 Series Technical information Specification Unit RGP40 Stage Backlash arcmin <4 < <0.0 Torsional stiffness Nm/arcmin..0 9 Efficiency with full load % Weight kg Lifetime () h 0,000 Radial load for,000h (4) N 0 Axial load for,000h (4) N 0 Running noise () db(a) Maximum input speed,000 rpm Input speed at >0% torque,000 Operating temperature max ºC 90 min ºC Motor mounting clamp torque M. Nm M 4. Lubrication Degree of protection IP4 Greased for life () NEMA 7 and motors are supplied with a mounting adaptor plate and a motor output shaft bush () Emergency stop torque equals twice nominal torque, maximum 00 times () Based on nominal torque and output shaft speed 0 rpm (4) Based on output shaft speed 0 rpm, centrally positioned along shaft () Distance metre, idle running, input speed,000 rpm, ratio Gearbox may be used in any mounting orientation Housing material: Steel black Input and output flanges material: Aluminium untreated Optional smooth output shaft if required Other motors may be utilised, please contact our sales team For detailed duty cycle and life calculation, please contact our sales team Gearbox designed to suit Reliance Cool Muscle intelligent integrated AC servo system, see pages &

7 RGP0 Series Planetary Gearboxes All dimensions in mm Associated Products Reliance Cool Muscle: page Couplings: page Hardware: page number selection table See page for motor mount details Example No: RGP0 0 NEMA7 Basic RGP0 RGP0 RGP0 Ratio Stage L Output Torque Inertia L L NEMA 7 NEMA Nominal Max mm mm mm mm Nm () Nm kgcm

8 Planetary Gearboxes RGP0 Series Technical information Specification Unit RGP0 Stage Backlash arcmin < < <. Torsional stiffness Nm/arcmin.. 9 Efficiency with full load % Weight kg.. Lifetime () h 0,000 Radial load for,000h (4) N 00 Axial load for,000h (4) N 00 Running noise () db(a) Maximum input speed,000 rpm Input speed at >0% Torque 4,00 Operating temperature max ºC 90 min ºC Motor mounting clamp torque M 4. Nm M4 9. Lubrication Greased for life Degree of protection IP4 () NEMA 7 and motors are supplied with a mounting adaptor plate and a motor output shaft bush () Emergency stop torque equals twice nominal torque, maximum 00 times () Based on nominal torque and output shaft speed 0 rpm (4) Based on output shaft speed 0 rpm, centrally positioned along shaft () Distance metre, idle running, input speed,000 rpm, ratio Gearbox may be used in any mounting orientation Housing material: Steel black Input and output flanges material: Aluminium untreated Optional smooth output shaft if required Other motors may be utilised, please contact our sales team For detailed duty cycle and life calculation, please contact our sales team Gearbox designed to suit Reliance Cool Muscle intelligent integrated AC servo system, see pages & 7

9 RGPN70 Series Planetary Gearboxes All dimensions in mm Associated Products Reliance Cool Muscle: page Couplings: page Hardware: page number selection table See page for motor mount details Example No: RGPN70 40 NEMA Basic RGPN70 RGPN70 Ratio Stage Output Torque Inertia Input Speed at Input Speed at L L Nominal Max 0% Torque 0% Torque mm mm Nm () Nm kgcm rpm rpm ,0, ,00, ,0, ,40, , 4, ,90, ,4, ,, ,90, , 4, ,40 4, ,000, ,000, ,000,000

10 Planetary Gearboxes RGPN70 Series Technical information Specification Unit RGP70 Stage < Backlash arcmin < Torsional stiffness Nm/arcmin 7 Efficiency with full load % Weight kg Lifetime () h,000 Radial load for,000h (4) N,0 Axial load for,000h (4) N 4,400 Running noise () db(a) Maximum input speed rpm 4,000 Operating temperature Motor mounting clamp torque M 4. Nm M4 9. Lubrication Greased for life Degree of protection IP () NEMA 7 and motors are supplied with an integrated mounting adaptor plate and a motor output shaft bush () Emergency stop torque equals twice nominal torque, maximum 00 times () Based on nominal torque and output shaft speed 0 rpm (4) Based on output shaft speed 0 rpm, centrally positioned along shaft () Distance metre, idle running, input speed,000 rpm, ratio 9.9 max ºC min ºC Gearbox may be used in any mounting orientation Housing material: Steel black Input flange material: Aluminium untreated Optional keyway output shaft if required Other motors may be utilised, please contact our sales team For detailed duty cycle and life calculation, please contact our sales team Gearbox designed to suit Reliance Cool Muscle intelligent integrated AC servo system, see pages & 9

11 Interface Detail Planetary Gearboxes Interface detail Gearbox NEMA 7 NEMA 7 NEMA L L L L4 RGP RGP0 0.4 RGPN70 70 N/A N/A The Reliance gearboxes use adaptor plates for low quantity orders of the RGP40 and RGP0 range. The adaptor plate allows for upgrade of the motor without the need to replace the gearbox. The RGP40 will be mounted at 4º to the NEMA size 7 motor (Fig ). If an inline mount is needed specifically for your requirements, please contact our sales team. The RGP0 will be mounted inline with the motor using the adaptor plate. For larger quantities the RGP40 and RGP0 are supplied as a complete unit with an integrated motor interface. The RGP40 will be mounted inline with the motor (Fig ) and L will be 40mm. The RGP0 will be mounted inline with the motor. Fig Fig

12 Planetary Gearboxes With Reliance Cool Muscle Motor Adaptor Plate Planetary Gearbox Cool Muscle Motor Bush number selection table Example No: RGP0 0 C 7S0RT Required Gearbox and Ratio Chosen from Gearbox Product Pages Motor Control C (computer) P (pulse) Reliance Cool Muscle Motor Size & Length Please note that the RGPN70 is only available for the NEMA Reliance Cool Muscle Motor 7S0RT 7L0RT S0RT LRT Reliance also offers the RGPW40, RGPW0 and RGPNW70 angular gearbox range. Designed at 90º, this angular gearbox range has been specially developed as a space saving installation method of gearbox to motor. Contact our sales team or visit for more information

13 Overview Bevel Gearboxes HY 70 R 00 BS 4 L 00 BS 0 T 00 BSH 40 L 00 BE 40 L 00 BE 70 L 00 B Gearbox Type HY Hypoid Gearbox BS Bevel Gearbox BSH Bevel Gearbox BE Bevel Gear Set Overall Length Distance from back face to shaft end Gearbox Shape R = Square L = L shape T = T shape Gear Ratio 00 = : 00 = : 00 = : Shaft Diameter Identification A = Smaller output/input shaft option B = Larger output/input shaft option * See bore type designator in part number, or + Reliance bevel boxes Reliance bevel boxes are a space saving solution to difficult design restraints or a restricted space envelope. Utilising a compact and simple design the BBox series has a completely sealed casing providing a dust free and safe operation. The bevel box uses a lightweight aluminium casing with stainless steel and carbon steels for the gears and shafting. Using AQ quality bevel gears, when assembled the backlash of the assembly is as low as < arcmins. All the units come with pretapped holes for alternative easy mounting and the enclosed units are lubricated with a high quality grease before sealing, offering lifetime lubrication and low maintenance. Utilising bevel gearing the bevel box range offers an economic solution to right angular motion.

14 Bevel Gearboxes Overview HyBox A fully sealed unit with an aluminium alloy casing, stainless steel shafting and carbon steel bevel gears. Offering ratios of : or : BBox The simplistic design allows for a slimline unit available in three designs, to offer a complete solution to design space saving solutions, with ratios of : and : available. Utilises a aluminium housing with stainless steel bevel gears and shafting. BSet The most economical bevel gearbox, simple and functional. Available with : and : ratios this unit comes with a removable cover which simply clips on to provide safe operation.

15 HY Series Hypoid Gearboxes All dimensions in mm Materials: Body Anodised aluminium (ISO AIMg0.7Si, AIMgSiCu) Pinion shaft SCM4 Gear shaft S4C Associated Products Motors: page Couplings: page Hardware: page number selection table HY70R00 HY90R0 HY9R00 HYR0 HY70R00 HY90R0 HY9R00 HYR0 Gear Ratio A B C D E F G ØH ØI (h7) (h7) J K L M T P Q R Hole Dims Drilled Holes & C/Bores Maximum Weight Depth Drill Counter C/Bore Overhang Hole Bore Depth Load S ØX ØV W (N) (kg) M M4 M4 M Allowable rated torque table HY70R00 HY90R0 HY9R00 HYR0 Module Teeth /40 7/70 /40 7/70 Input Torque Ncm at: 0RPM 0RPM 00RPM 00RPM 00RPM 00RPM 00RPM 00RPM

16 Bevel Gearboxes BS LType Series Associated Products Motors: page Couplings: page Hardware: page All dimensions in mm Materials: Body Anodised aluminium (ISO AIMg0.7Si, AIMgSiCu) Shaft Stainless steel (SUS0) number selection table BSL00 BS4L00 BSL00 BS0L00 BS90L00 BSL00 BSL00 BS0L00 BS90L00 BSL00 Gear Ratio C A B ØD (h7) E F G Shaft End Hole Dims T L M Depth.7. M M M4 M M M M4 M M M Backlash (arcmin) Weight (g) Allowable rated torque table BSL00 BS4L00 BSL00 BS0L00 BS90L00 BSL00 BSL00 BS0L00 BS90L00 BSL00 Module Teeth / / / / Input Torque Ncm at: 0rpm 0rpm 0rpm 00rpm 00rpm 00rpm 00rpm 00rpm

17 BS TType Series Bevel Gearboxes All dimensions in mm Material: Body Anodised aluminium (ISO AIMg0.7Si, AIMgSiCu) Shaft Stainless steel (SUS0) Associated Products Motors: page Couplings: page Hardware: page number selection table BS4T00 BST00 BS0T00 BS90T00 BST00 BS0T00 BS90T00 Gear Ratio Z Y C A B ØD (h7) E F G Shaft End Set Screw T L M Depth. M M4 M M M4 M M Backlash (arcmin) Weight (g) Allowable rated torque table BS4T00 BST00 BS0T00 BS90T00 BST00 BS0T00 BS90T00 Module Teeth / / / Input Torque Ncm at: 0rpm 0rpm 0rpm 00rpm 00rpm 00rpm 00rpm 00rpm

18 Bevel Gearboxes BSB LBType Series Associated Products Motors: page Couplings: page Hardware: page All dimensions in mm Material: Body Anodised aluminium (ISO AIMg0.7Si, AIMgSiCu) Shaft Stainless steel (SUS0) number selection table Gear Ratio BSBL00A BSBL00B BSB0L00A BSB0L00B BSB90L00A BSB90L00B BSBL00A BSBL00B Backlash: arcmin C A B ØD h7 Bore Depth Set Screw Weight ØH Depth (H7) E I ØJ K F G M L N (g) M. M4 M 9 9 M. M4 M M M M M M M 9 9 M4 M 7 M4 4 9 M4 M 7 M4 40 M4 M 7 M4 0 7 M4 M 7 M4 0 7 Allowable rated torque table BSBL00A/B BSB0L00A/B BSB90L00A/B BSBL00A/B Input Torque Ncm at: ModuleTeeth 0rpm 0rpm0rpm00rpm 00rpm 00rpm 00rpm 00rpm

19 BSH LType Series Bevel Gearboxes All dimensions in mm Material: Body Aluminium (ISO AIMg0.7Si, AIMgSiCu) and Cast iron castings (JIS G0) Shaft Stainless and carbon steels (SUS0, S4C) Associated Products Motors: page Couplings: page Hardware: page number selection table BSH70L00 BSHL00 BSH9L00 BSHL00 Gear Body Ratio Matl* C A B AL AL AL FC ØD h7 E F G 9 4 Keyway Set Screw Shaft End b t L M Depth T Depth M4. 4 M 7. M 4. M M4 BSH70L00 BSHL00 BSH9L00 BSHL00 Backlash (arcmin) Maximum Overhang Load (N) *Body material and surface treatments (AL) Al Alloy: A0, A0, black anodised (FC) Cast iron: FC0, FC0, black oxide Weight (Kg) Allowable rated torque table BSH70L00 BSHL00 BSH9L00 BSHL00 ModuleTeeth Input Torque Nm at: 0rpm 00rpm00rpm 00rpm 00rpm 00rpm 00rpm 000rpm

20 Bevel Gearboxes BSH TType Series Associated Products Motors: page Couplings: page Hardware: page All dimensions in mm Material: Body Aluminium (ISO AIMg0.7Si, AIMgSiCu) Shaft Stainless and carbon steels (SUS0, S4C) number selection table BSH70T00 BSHT00 BSH9T00 Gear Body Ratio Matl* Z Y C A B AL ØD h7 E F G 9 4 Keyway Set Screw b t L M Depth M4. 4 M 7. M BSH70T00 BSHT00 BSH9T00 Backlash (arcmin) Maximum Overhang Load (N) *Body material and surface treatments (AL) Al Alloy: A0, A0, black anodised Weight (Kg) Allowable rated torque table ModuleTeeth Input Torque Nm at: 0rpm 00rpm00rpm 00rpm 00rpm 00rpm 00rpm 000rpm BSH70T00 BSHT00 BSH9T

21 BE Series Ratio : Bevel Gearboxes All dimensions in mm Material: Body Anodised aluminium (ISO AIMg0.7Si, AIMgSiCu) Shaft Stainless steel (SUS0) Associated Products Motors: page Couplings: page Hardware: page number selection table BE40L00 BEL00 BE70L00A BE70L00B BEL00A BEL00B Gear Ratio A B C L ØM N T U BE40L00 BEL00 BE70L00A BE70L00B BEL00A BEL00B ØD h E F G H P J Weight (g) Drilled Holes & C/Bores Drill Hole ØK C/Bore ØV C/Bore Depth W Allowable rated torque table BE40L00 BEL00 BE70L00A BE70L00B BEL00A BEL00B Module Teeth Input Torque Ncm at: 0rpm 0rpm 0rpm 00rpm BE series gearboxes are supplied with a clip on plastic cover.

22 Bevel Gearboxes BE Series Ratio : Associated Products Motors: page Couplings: page Hardware: page All dimensions in mm Material: Body Anodised aluminium (ISO AIMg0.7Si, AIMgSiCu) Shaft Stainless steel (SUS0) number selection table BEL00 BE70L00A BE70L00B BEL00A BEL00B Gear Ratio A B C L ØM N T U BEL00 BE70L00A BE70L00B BEL00A BEL00B ØD h E F G H P J Weight (g) Drilled Holes & C/Bores Drill Hole ØK C/Bore ØV C/Bore Depth W Allowable rated torque table BEL00 BE70L00A BE70L00B BEL00A BEL00B Module Teeth / / / / / Input Torque Ncm at: 0rpm 0rpm 0rpm 00rpm BE series gearboxes are supplied with a clip on plastic cover.

23 MEM7 Series Epicyclic Modules FEATURES Transmission Efficiency 9% per single unit, 9% even in double units, the power source may be smaller than with many other reduction gears. Noise Reduction Gear noise is reduced by a special construction of disksided planetary gears. Load Equalised Structure The inherent problem of loadsharing with planetary gear systems is solved by the load equalised construction. High Torque Transmission MEM is a compact unit with high torque transmission because it is designed to equalise the loads of each planetary gear. Many Reduction Ratios It is possible to obtain many reduction ratios by combining standard units (:, 4:, :). Structure MEM 7 4 M L D Epicyclic Module Outside Diameter Reduction Ratio Material* M = Standard P* and S* are nonstd Please enquire Input Shaft* Form L = Standard A* and I* are nonstd Please enquire Output Shaft Form D = Standard G is nonstd Please enquire Material M = Metal carrier Metal housing Metal internal/planet gears Metal sun gear P* = Plastic carrier Plastic housing Plastic internal/planet gears Metal sun gear S* = Metal carrier Plastic housing Plastic internal/planet gears Metal sun gear Input shaft form L = splined shaft teeth.0 module 4º P.A. (standard) A*= D shaped shaft mm diameter x 7mm I* = splined hole mm diameter with 9 splines 0.7 module º P.A. Output shaft form D = splined hole mm diameter splines.0 module 4º P.A. (standard) G = splined hole 9.mm diameter splines 0.7 module 4º P.A. Reduction ratios Metal units (M) Hybrid units (S) :, 4:, : Plastic units (P).:,.7:, 4.: Insert for :, 4 for 4:, for :

24 Epicyclic Modules MEM7 Series Associated Products Motors: page Couplings: page Hardware: page Accessories: page 4 All dimensions in mm number selection table Unit Ratio Weight Inertia (g) W X Y kgcm MEM7MLD : MEM74MLD 4: MEM7MLD : MEM7MLD : 4. MEM74MLD 4: MEM7MLD : 7 4. For torque graphs, see page T For complete gearhead information, see page T Accessories Spacer ring for spacing modules at the correct distance Retaining rings for accepting through bolts to retain modules Ø output shaft, Nm torque rated Ø output shaft for customers to machine to their requirements See page 4 for the range of accessories

25 MEM7 Series Epicyclic Modules Accessories All dimensions in mm ACCESSORIES Associated Products Matex Epicyclic Modules: page The female module accepts the motor shaft as input, the succeeding male module then plugs in to the output of the female. Successive male modules can then be added as desired Function Material Weight g Description. Spacer ring MEM790 POM For spacing modules at the correct distance. Retaining ring MEM79 SPCC For accepting through bolts to retain modules. Ø O/P shaft MEM7907 SCM4 0 Nm torque rated 4. Ø O/P shaft MEM790 S4C 7 For customer to machine to requirements 4

26 Technical Information Planetary Gearboxes OUTPUT SHAFT BEARING LIFE. Calculate F rl with the following formula. Calculate the forceproportion Please consult Reliance Precision Mechatronics if e>0.. Calculate F L with the following formula FORMULA SYMBOLS L h h lifetime F a N axial load at the output shaft F r N radial load at the output shaft R mm distance, axial load to centre of the gearbox A mm distance, radial load to flange plane n min output shaft speed C x gearbox constants from following table 4 RGP40 RGP0 RGPN70 C mm... C mm.9. C L N MAXIMUM LOAD IN CENTRE OF THE OUTPUT SHAFT RGP40 RGP0 RGPN70 F r N F a N 0 00 T

27 Epicyclic Modules Technical Information TORQUE CURVES OUTPUT SHAFT TORQUE This is derived from an eight hour day, continuous unidirectional drive and no impact fluctuating load. PEAK TORQUE CAPABILITY Momentarily allowable torque is 0% of rated torque (under the same conditions as output torque). 4 DYNAMIC LOAD FACTOR The rated torque has been derated in accordance with the following table: Dynamic Load Factor (Sf) Drive Electric Motor Driven Hrs/day < 4 Uniform Sf.0 Load Type Medium Impact Sf.0.. Heavy Impact Sf..7.0 Allowable Torque = Rated Torque Sf T

28 Technical Information Epicyclic Modules REVERSING MOTION Should MEMs be used in a reversing drive (eg. servo application) the units should be derated to 0%. TEMPERATURE RANGE The unit will operate satisfactorily between º and +ºC. For the all metal units, maximum temperature can be 7ºC. MOUNTING POSITION The standard position is horizontal. For other planes, please contact our sales team for more information. REQUIREMENTS FOR ASSEMBLING UNITS. Alignment Radial alignment errors, after fitting the input and output shafts, should be within 0.mm.. Location of Internal Gear A unit should be located in the manner in which the torque distribution is uniform in the internal gear.. Clearance Axial clearance between the unit s revolving parts (Carrier A & B) and casing should be mm to 4mm. 4. Thrust Support when Mounting Vertically When mounting the units with shafts vertically, care must be taken to ensure that the mass of the module is supported by the shaft bearings and not the planet disks containing the internal gear. If the unit is mounted with the output shaft uppermost, then a shoulder will be required on the input shaft and vice versa.. Lubrication In the case of grease lubrication, the casing should be filled with grease to between 0% and 0% of the volume. In the case of oil lubrication, fill the case to between 0% and 0% of the volume. 4 OVERHANG LOAD (OHL) Kg The overhang load is a bending force acting on the shaft generated by torque transmssion, which depends on the forces on the output shaft. Calculate the OHL according to following equation and select an appropriate bearing: T : Driving torque R : Pitch circle radius of gear or sprocket Ef : Element factor: Gear.. Sprocket. Flat Belt..0 V Belt..0 O.H.L. Capacity = T x Ef/R T

29 Epicyclic Modules Technical Information NOTES FOR HANDLING. Plastic Unit P Lubricated with grease when assembled. (Units without grease lubrication are special to order).. Sintering Alloy Unit S Not lubricated with grease when assembled. (Units with grease lubrication are special to order).. Metal Unit M Not lubricated with grease or oil. 4. Do not mix strong acid or oil additives and thinners to the lubricant of the plastic units.. Do not allow rapid temperature variations. This will generate moisture.. Store the MEM units in a dark room below 40ºC and keep in a dry, dustfree atmosphere. 7. If a unit is mounted on a surface which acts as a soundingboard, the noise will be amplified above the inherent noise level of the unit. Take care when mounting the unit. HOUSED UNITS (LGH) MEM modules can be supplied mounted in an aluminium housing complete with output shaft and support bearings. The complete unit is rated at Nm output torque, and can have either one, two or three modules. Maximum reduction ratio is : with x: ratio modules. The accompanying motor must have a D shaped shaft of mm diameter and 7mm over the flat. Also included is the MEM. This is a housed unit complete with input and output shaft. Actual ratio is 9.: and the unit is capable of handling Nm output torque. Larger modules are available up to 00Nm output torque. Please enquire. 4 T4