R+W Germany
R+W Couplings
R+W Germany couplings - bellows (BKL/BK), elastomer (EK), miniature encoder (MK) and torque limiters. Dealer/stockist India.
R+W couplings overview
R+W Antriebselemente GmbH manufactures precision couplings, torque limiters and line shafts for servo drives, test equipment and machine protection.
Golden Bearing Company acts as dealer/stockist for R+W Germany couplings and torque limiters in India — not as an authorised distributor.
Engineering family summary
Bellows coupling families
BK and BKL platforms
BK metal bellows couplings cover clamping hub, press fit, flange, hollow shaft and conical mounting configurations (BK5, BK1, BK2, BK6, BK8, BKH, BKZ, BKS, BKM, BKC, BK7, BK3).
BKL zero-backlash bellows couplings use clamping hubs with eleven catalogue sizes (2 through 500) including rated torque and dimension data on dedicated PDPs and in the BKL catalogue. BKL-2 and BKL-3 are related sub-series with distinct envelopes.
Flexible coupling families
EK, MK and LK
EK elastomer couplings provide vibration damping for general industrial and light precision drives (EKL, EK4, EK1, EKH, EK6, ESL, EZV, EK7, TX1, EK2, EZ2, ES2, EKZ).
MK miniature couplings suit encoder, resolver and feedback shafts (MK1–MK6, MKH, MKS, FK1).
LK linear couplings use a backlash-free spring design for precision linear drive connections.
Drive-line components
Torque limiters and line shafts
R+W Torque Limiters (SK1, SK2, SKP, SK3, SKN, SK5, ES2, ESL and related families) protect machinery from overload torque — distinct from flexible couplings.
R+W Line Shafts (ZA, EZ2, EZV, ZAE) extend drive lines as precision shaft extension products.
Selection guidance
Choosing an R+W family
- Define the application: servo positioning, encoder feedback, general flexible drive, linear compensation, overload protection or shaft extension.
- Compare torsional stiffness requirements — bellows (BK/BKL) for low backlash; elastomer (EK) for damping; miniature (MK) for compact feedback duty.
- Confirm shaft bore, torque duty, speed and misalignment against R+W catalogue data for the target family.
- For published BKL sizes, use the catalogue PDPs for rated torque TKN and bore before enquiry.
- Send complete R+W model designation or application data for dealer/stockist quotation review.
Applications
Typical engineering use
R+W couplings and drive components are used on servo motor connections, ball screw and spindle drives, encoder and feedback shafts, test equipment, packaging automation, machine tool auxiliary drives and precision linear assemblies. Selection depends on whether stiffness, damping, compact envelope, linear compensation or overload protection dominates the duty.
Engineering considerations
Why R+W for precision drives
Metal bellows couplings maintain angular transmission accuracy with low wind-up compared to elastomer alternatives. R+W torque limiters are mechanical safety devices — not interchangeable with flexible couplings. Golden Bearing Company supports R+W selection as dealer/stockist using R+W catalogue data; we do not manufacture R+W products.
Engineering enquiry
Golden Bearing Company is a dealer/stockist for R+W Germany couplings and torque limiters.
Send R+W model designation, shaft bore, torque duty and speed for catalogue review.
R+W product portfolio
Image-led family selector for R+W couplings, torque limiters and line shafts.
Common questions
Golden Bearing Company is a dealer/stockist for R+W Germany couplings and torque limiters, not an authorised distributor. Enquiries are handled on a quotation basis against R+W catalogue data.
No. Torque limiters protect against overload torque spikes. They are mechanical safety devices, separate from flexible couplings. See R+W Torque Limiters.
Send R+W model designation or family, shaft bore sizes, torque duty, speed, misalignment requirements and application context. Dealer/stockist quotations are prepared from R+W catalogue data.
Zero backlash indicates minimal angular wind-up between connected shafts under normal load, important for servo positioning and feedback accuracy. BKL bellows couplings are designed for backlash-free operation; confirm ratings against catalogue data for your duty.
Request an Engineering Quote
Share shaft bore, speed, torque duty and ordering designation. Golden Bearing Company is a dealer/stockist for R+W Germany couplings and torque limiters.