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TFS Freewheels Cam Clutch Single Directional One Way Clutch Bearing With Keyways
TFS Series Cam Clutch is a sprag type clutch designed for press fit installation. Sprag type designs typically have a higher torque capacity than a similarly sized ramp & roller type clutch. TFS has two vertical keyways on the outer race to assist with locating. Outside dimensions are the same as Series 63 ball bearings. This design is ideal for general inner or outer race overrunning applications. Since the TFS Series does not include an integral bearing, installing the TFS Cam Clutch next to a bearing which handles both the axial and radial loads is the typical application. TFS Series ships pre-lubricated with oil.
Keyway:
The keyway is up to diameter d=12mm according to DIN 6885-1. Above that according to DIN 6885-3.
Mounting:
For the bearing and the freewheel, the same installation tolerances must be provided. Recommended housing tolerance H7. For the shaft h7. If the tolerance of the housing inner diameter for the freewheel TFS is K6, no feather keys are required on the end face grooves of the freewheel. During installation, care must be taken to ensure the correct direction of rotation. The direction of rotation is indicated by a marking arrow on the freewheel.
Lubrication:
Oil lubrication. TFS Series ships pre-lubricated with oil.
Temperature range:
approx. -10°C to + 50°C.
Other versions on request.
Freewheels Cam Clutch Single Directional One Way Clutch Bearing With Keyways TFS Series Specifications:
| Clutch Bearing Type | Bore sizes | Bore Keyway | Dimension(mm) | |||||||
| d | A (Overall Width) | B (Overall Diameter) | C (Outer Race I.D.) | D (Inner Race I.D.) | E (Chamfer) | F (Chamfer) | G (Slot Width) | H (Slot Depth) | ||
| TFS12 | 12 | 4 x 1.8 | 13 | 35 | 30 | 18 | 0.6 | 0.3 | 4 | 1.4 |
| TFS15 | 15 | 5 x 1.2 | 18 | 42 | 36 | 22 | 0.8 | 0.3 | 5 | 1.8 |
| TFS17 | 17 | 5 x 1.2 | 19 | 47 | 38 | 22 | 1.2 | 0.8 | 5 | 2.3 |
| TFS20 | 20 | 6x 1.6 | 21 | 52 | 45 | 27 | 1.2 | 0.8 | 6 | 2.3 |
| TFS25 | 25 | 8x 2.0 | 24 | 62 | 52 | 35 | 1.2 | 0.8 | 8 | 2.8 |
| TFS30 | 30 | 8 x 2.0 | 27 | 72 | 62 | 40 | 1.8 | 1.0 | 10 | 2.5 |
| TFS35 | 35 | 10 x 2.4 | 31 | 80 | 70 | 48 | 1.8 | 1.0 | 12 | 3.5 |
| TFS40 | 40 | 12 x 2.2 | 33 | 90 | 78 | 54.5 | 1.8 | 1.0 | 12 | 4.1 |
| TFS45 | 45 | 14 x 2.1 | 36 | 100 | 85.3 | 59 | 1.8 | 1.0 | 14 | 4.6 |
| TFS50 | 50 | 14 x 2.1 | 40 | 110 | 92 | 65 | 1.8 | 1.0 | 14 | 5.6 |
| TFS60 | 60 | 18x 2.3 | 46 | 130 | 110 | 84 | 2.6 | 1.5 | 18 | 5.5 |
| TFS70 | 70 | 20 x 2.7 | 51 | 150 | 125 | 91 | 2.6 | 1.5 | 20 | 6.9 |
| TFS80 | 80 | 24 x 3.1 | 58 | 170 | 140 | 100 | 2.6 | 1.5 | 20 | 7.5 |
Specifications:
| Clutch Bearing Type | Bore sizes | Max. Torque (Nm) | Drag Torque (Nm) | Max. Overrunning Speed (rpm) | Net Weight (g) | |
| d | Inner Race | Outer Race | ||||
| TFS12 | 12 | 18 | 0.040 | 4500 | 2300 | 68 |
| TFS15 | 15 | 28 | 0.060 | 3500 | 1800 | 120 |
| TFS17 | 17 | 50 | 0.110 | 3200 | 1600 | 150 |
| TFS20 | 20 | 84 | 0.180 | 2500 | 1300 | 220 |
| TFS25 | 25 | 128 | 0.190 | 2000 | 1000 | 360 |
| TFS30 | 30 | 200 | 0.210 | 1600 | 800 | 530 |
| TFS35 | 35 | 475 | 0.420 | 1400 | 700 | 790 |
| TFS40 | 40 | 607 | 0.460 | 1300 | 650 | 1050 |
| TFS45 | 45 | 756 | 0.560 | 1100 | 550 | 1370 |
| TFS50 | 50 | 1124 | 0.600 | 1000 | 500 | 1900 |
| TFS60 | 60 | 1975 | 0.870 | 840 | 420 | 3110 |
| TFS70 | 70 | 2514 | 0.910 | 750 | 380 | 4390 |
| TFS80 | 80 | 3924 | 1.220 | 670 | 340 | 6440 |
