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Straight Locking Assemblies
Belts, Sheaves and Pulleys
The B-LOC brand is synonymous with world class quality, engineering excellence and unrivaled customer support. Fenner Drives B-LOC Keyless Bushings provide a high capacity, zero-backlash shaft-to-hub connection by using the simple wedge principle. An axial force is applied by series of annular screws to engage circular steel rings and mating tapers. The resulting wedge action creates a radial force on the tapered rings, one of which contracts to squeeze the shaft while the other expands and presses into the component bore.
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Series
Screw Size
Tightening Torque (lb·ft)
Tightening Torque (N·m)
Outside Diameter (in)
Outside Diameter (mm)
Bore Size (in)
Bore Size (mm)
Length Through Bore (in)
Length Through Bore (mm)
Item # |
Item Name |
Screw Size |
Torque [Max] |
Tightening Torque |
Outside Diameter |
|---|---|---|---|---|---|
| B401075 | N/A B-LOC B400 75 mm x 115 mm | Screw Size N/A M10 x 25 | Torque [Max] N/A 6300 N·m | Tightening Torque N/A 69 N·m | Outside Diameter N/A 115 mm |
| B401080 | N/A B-LOC B400 80 mm x 120 mm | Screw Size N/A M10 x 25 | Torque [Max] N/A 6720 N·m | Tightening Torque N/A 69 N·m | Outside Diameter N/A 120.000 mm |
| B401090 | N/A B-LOC B400 90 mm x 130 mm | Screw Size N/A M10 x 25 | Torque [Max] N/A 8639 N·m | Tightening Torque N/A 69 N·m | Outside Diameter N/A 130 mm |
| B401095 | N/A B-LOC B400 95 mm x 135 mm | Screw Size N/A M10 x 25 | Torque [Max] N/A 10259 N·m | Tightening Torque N/A 69 N·m | Outside Diameter N/A 135 mm |
| B401100 | N/A B-LOC B400 100 mm x 145 mm | Screw Size N/A M12 x 30 | Torque [Max] N/A 12800 N·m | Tightening Torque N/A 123 N·m | Outside Diameter N/A 145.000 mm |
| B401110 | N/A B-LOC B400 110 mm x 155 mm | Screw Size N/A M12 x 30 | Torque [Max] N/A 14081 N·m | Tightening Torque N/A 123 N·m | Outside Diameter N/A 155 mm |
| B401120 | N/A B-LOC B400 120 mm x 165 mm | Screw Size N/A M12 x 30 | Torque [Max] N/A 17553 N·m | Tightening Torque N/A 123 N·m | Outside Diameter N/A 165 mm |
| B401130 | N/A B-LOC B400 130 mm x 180 mm | Screw Size N/A M12 x 35 | Torque [Max] N/A 23771 N·m | Tightening Torque N/A 123 N·m | Outside Diameter N/A 180 mm |
| B401140 | N/A B-LOC B400 140 mm x 190 mm | Screw Size N/A M12 x 35 | Torque [Max] N/A 28161 N·m | Tightening Torque N/A 123 N·m | Outside Diameter N/A 190 mm |
| B401160 | N/A B-LOC B400 160 mm x 210 mm | Screw Size N/A M12 x 35 | Torque [Max] N/A 38033 N·m | Tightening Torque N/A 123 N·m | Outside Diameter N/A 210.000 mm |
| B401170 | N/A B-LOC B400 170 mm x 225 mm | Screw Size N/A M14 x 40 | Torque [Max] N/A 44752 N·m | Tightening Torque N/A 187 N·m | Outside Diameter N/A 225.000 mm |
| B401180 | N/A B-LOC B400 180 mm x 235 mm | Screw Size N/A M14 x 40 | Torque [Max] N/A 51694 N·m | Tightening Torque N/A 187 N·m | Outside Diameter N/A 235 mm |
| B401190 | N/A B-LOC B400 190 mm x 250 mm | Screw Size N/A M14 x 45 | Torque [Max] N/A 63654 N·m | Tightening Torque N/A 187 N·m | Outside Diameter N/A 250.000 mm |
| B401200 | N/A B-LOC B400 200 mm x 260 mm | Screw Size N/A M14 x 45 | Torque [Max] N/A 71794 N·m | Tightening Torque N/A 187 N·m | Outside Diameter N/A 260.000 mm |
| B402012 | N/A B-LOC B400 3/4" | Screw Size N/A M6 x 18 | Torque [Max] N/A 234 lb·ft | Tightening Torque N/A 11 lb·ft | Outside Diameter N/A 1.850 in |
| B402014 | N/A B-LOC B400 7/8" | Screw Size N/A M6 x 18 | Torque [Max] N/A 273 lb·ft | Tightening Torque N/A 11 lb·ft | Outside Diameter N/A 1.850 in |
| B402100 | N/A B-LOC B400 1" | Screw Size N/A M6 x 18 | Torque [Max] N/A 352 lb·ft | Tightening Torque N/A 11 lb·ft | Outside Diameter N/A 1.969 in |
| B402102 | N/A B-LOC B400 1.125" | Screw Size N/A M6 x 18 | Torque [Max] N/A 440 lb·ft | Tightening Torque N/A 11 lb·ft | Outside Diameter N/A 2.165 in |
| B402104 | N/A B-LOC B400 1.25" | Screw Size N/A M6 x 18 | Torque [Max] N/A 586 lb·ft | Tightening Torque N/A 11 lb·ft | Outside Diameter N/A 2.362 in |
| B402107 | N/A B-LOC B400 1.4375" | Screw Size N/A M6 x 18 | Torque [Max] N/A 786 lb·ft | Tightening Torque N/A 11 lb·ft | Outside Diameter N/A 2.559 in |
| B402108 | N/A B-LOC B400 1.5" | Screw Size N/A M6 x 18 | Torque [Max] N/A 820 lb·ft | Tightening Torque N/A 11 lb·ft | Outside Diameter N/A 2.559 in |
| B402110 | N/A B-LOC B400 1.625" | Screw Size N/A M8 x 22 | Torque [Max] N/A 1381 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 2.953 in |
| B402111 | N/A B-LOC B400 1.6875" | Screw Size N/A M8 x 22 | Torque [Max] N/A 1434 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 2.953 in |
| B402112 | N/A B-LOC B400 1.75" | Screw Size N/A M8 x 22 | Torque [Max] N/A 1487 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 2.953 in |
| B402114 | N/A B-LOC B400 1.875" | Screw Size N/A M8 x 22 | Torque [Max] N/A 1593 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 3.150 in |
