CK-DTIANIU
Sprag Clutch without Inner Race .
CK-D (metric) / B-200 (inch) Series Sprag Clutch without Inner Race

CK-D and its inch version B-200 are Tianiu sprag clutches without inner race and without bearing support: the sprags run directly on the shaft, which must be h7 toleranced, with 0.01 mm cylindricity and HRC 56–60 hardness. The outer race, sized as 6203–6214 ball bearings, is keyed into the housing; adjacent bearings keep the shaft and outer race concentric. The metric CK-D range has 13 sizes for 17–70 mm shafts, the inch B-200 range (B203–B214) has 12 sizes for 16.510–79.356 mm shafts; nominal torque 33–1,188 N·m. Grease must be applied at installation.
Applications
- Packaging machines
- Bag-making machines
- Corrugated board lines
- Gear reducers
- Hoists and elevators
Specifications
- Type
- sprag, without inner race and bearing support
- Nominal torque
- 33–1,188 N·m
- Shaft diameter
- 17–70 mm (CK-D); 16.510–79.356 mm (B-200)
- Shaft requirements
- h7 tolerance, 0.01 mm cylindricity, HRC 56–60 hardness
- Overrunning speed limit
- CK-D: shaft 700–1,680, outer race 128–425 rpm; B-200: 860–2,040 / 180–500 rpm
- Sizes
- 13 CK-D (CK-D1740 … CK-D70125) + 12 B-200 (B203 … B214)
- Outer race
- 40–125 mm (h7), keyed to housing; envelope of 6203–6214 ball bearings
- Lubrication
- grease, applied at installation