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Motorcycle Clutch Sprag Freewheel Clutch One Way Clutch Bearing BW13255
Feature
Type BWC is a sprag type freewheel cage without inner or outer races. It must be installed in a design providing races, bearing
support for axial and radial loads, lubrication and sealing. The BWC type version-N accepts all types of lubricants currently
used in the power transmis-sion equipement. The sprag space tolerance must not be exceeded. Inner and outer races must
both have a minimum plain width "e", without any recess, to ensure the freewheel functions correctly. Alternatively, races can be
made in case hardened steel shafts, or housings, to the specification below. Surface hardness of the finished part should be HRC 60 to 62, for a depth of 0, 6 mm minimum. Core hardness to be HRC35 to 45. Surface roughness not to exceed 22CLA. Maximum taper between races: 0, 007 mm for 25 mm width.
Dimensions and Capacities
| Item | X,BW,BWC |
| Material | Chrome Steel GCr15 |
| Structure | Single row sprag type freewheel without inner or outer races |
| Surface hadrness | HRC60 to 62, for a depth of 0.6mm minimum |
| Core hardness | HRC35 to 45 |
| Inside shaft dia. | 83.596 mm |
| Outside shaft dia. | 102.555 mm |
| Max. width | 25.4 mm |
The Parameters of the Sprag Freewheel Cage X,BW,BWC
| Type | Inside shaft Diameter | Outside Shaft Diameter | Maximum Width | Rated Drag Torque | ||
| D1 | Sprag Space | De | Sprag Space | B | N.M (kgf.m) | |
| x-135006 | 54.572 | +0.008-0.005 | 71.211 | ±0.013 | 20.5 | 799 (81.5) |
| BW-13231 | 54.765 | - | 71.427 | - | 13.5 | 402 (41.0) |
| BW-13214 | 15.9 | 363 (37.0) | ||||
| BW-13167 | 15.9 | 569 (58.0) | ||||
| BW-13209 | 57.760 | - | 74.427 | - | 13.5 | 554 (56.5) |
| BWC-13239B | 15.9 | 711 (72.5) | ||||
| BW-13238 | 21.0 | 1050 (107) | ||||
| X-133401 | 59.538 | - | 76.200 | - | 25.4 | 1350 (138) |
| BW-13243 | 72.217 | - | 88.882 | - | 13.5 | 637 (65.0) |
| BWC-13168 | 21.0 | 1510 (154) | ||||
| BWC-13229 | 21.6 | 1325 (135) | ||||
| BW-13255 | 26.7 | 1920 (196) | ||||
| X-133614C | 83.596 | ±0.013 | 102.555 | - | 25.4 | 3040 (310) |
| X-133402 | 85.776 | - | 104.775 | - | 25.4 | 3090 (315) |
| BWC-13251 | 103.231 | - | 119.944 | - | 15.4 | 789 (80.5) |
| BWC-13261 | 15.4 | 1580 (161) | ||||
| X-133639 | 103.231 | - | 122.230 | - | 25.4 | 4410 (450) |
| X-133403 | 123.881 | - | 142.880 | - | 25.4 | 5740 (585) |
