Premium power transmission and special products

JMS Europe B.V.

Keyless locking devices

  • 20 years of production experience
  • Annual turnover of our partner $ 8 mln
  • Custom made specials

locking devices


Product range Concentricity Size range Torque range
Almost 50 different types  Premium quality
concentricity 0,005 - 0,02mm

concentricity 0,03 mm   
Min. O.D.
Ø 8mm
4,2 Nm
 Max. O.D.
Ø 1400mm
7.000.000 Nm

Tumbling of keyless locking device parts

You can transmit higher torques than our competitors with our Locking devices !

We have longer tumbling times with special selected stones.
As a consequence the roughness of Premium Locking device parts is: Ra 0.8 till 1.6 µm !
This extreme smoothness results in an optimal contact between all parts.

Furthermore, all our parts of Premium Locking devices - made on our high precision production equipment - are hardened.