Torsionally rigid block design, allows for tightest functional tolerances.

- Sizes:
- K1 – K10

- Accelerating torque:
- 42 – 13,200 Nm

- Gear ratio range:
- 4 – 381

- Backlash:
- Standard: < 10 – 12 arc min
- Reduced: class II < 5 – 6 arc min
- Reduced: class I < 1.5 – 3 arc min