Precision Couplings

Metal Bellows Couplings BK range
0.1 – 100,000 Nm
- Torsionally stiff
- Low moment of inertia
- Zero backlash
- Highly concentric
- Naturally very well balanced
- Precise transmission
- Infinite life
- Wear and maintenance free
- Easy to install
Metal Bellows Couplings BX range
10,000 – 100,000 Nm
- for high torque applications
- compact, simple design
- easy mounting and dismounting
- backlash free and torsionally rigid
- various overall lengths available
- high misalignment compensation


Servomax Elastomer Couplings
5 – 2,150 Nm
- Vibration damping
- Electrically isolating
- Backlash-free
- Calibrated pre-loaded insert
- Concentrically machined hubs
Elastic Jaw couplings
1,950 – 25,000 Nm
- lateral mounting possible
- concentrically machined hubs
- vibration damping
- electrically isolating
- easy mounting
- backlash free


Servo Disc Pack Couplings
25 – 100Nm
- low inertia
- high torsional stiffness
- backlash free
- low imbalance
- Disc packs: highly elastic spring steel
- Hubs and spacer: aluminium
Disc Pack Couplings
350 – 24,000 Nm
- Maintenance-free for infinite life
- Frictional clamping of disc packs
- High speeds with extended DBSE
- Zero backlash
- High torsional stiffness
- Robust compact design
- Precise transmission of angular motion and torque
- High operational dependability
- Low restoring forces from misalignment
- Compensation for lateral, axial and angular shaft misalignment


SK Torque Limiters
0.1 – 2,800 Nm
- Protects from rotating inertia as well as motor torque
- Precise torque overload protection
- Patented preload for zero backlash
- Compact simple design
- Low moment of inertia
- Extremely fast disengagement
- Low residual friction after disengagement
ST Torque Limiters
200 – 450,000 Nm
- Adjustable disengagement torque
- Precise overload protection
- Compact, simple design
- Zero maintenance
- Backlash free


Line Shafts
10 – 25,000 Nm
- Installation and removal without disturbing adjacent equipment
- Self-supporting up to 6 meters
- No intermediate support bearing required
Flexible Gear Couplings
1,900 – 2,080,000 Nm
- high power density
- economically priced
- low maintenance due to special crowned tooth design
- very low backlash and highly rigid torque transmission
- long life


Miniature Bellows Couplings
0.05 – 10 Nm
- Zero backlash
- Torsionally stiff
- Precise transmission
- Infinite life
- Easy to install
Coupling Accessories
A range of add-on accessories which some applications will require. Call us to learn more if you’re unsure whether your design needs these accessories.

Latest News
What’s the difference between a ball screw and a lead screw?
In a recent conversation with a customer one of our [...]
Industry leading screw jacks from Grob and Drive Lines
One of our more popular product solutions is the range [...]
What is a bevel gearbox?
What is a bevel gearbox? There are many different kinds [...]
Nidec Graessner Corporate Video
Nidec Graessner There have been a lot of [...]