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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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Screw Size
Tightening Torque (lb·ft)
Tightening Torque (N·m)
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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 |
---|---|---|---|---|---|
B122108 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 1.5" | Screw Size N/A M8 x 50 | Torque [Max] N/A 2011 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 2.953 in |
B122110 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 1.625" | Screw Size N/A M8 x 50 | Torque [Max] N/A 2179 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 2.953 in |
B122112 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 1.75" | Screw Size N/A M8 x 50 | Torque [Max] N/A 2347 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 2.953 in |
B122114 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 1.875" | Screw Size N/A M8 x 55 | Torque [Max] N/A 2873 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 3.150 in |
B122115 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 1.9375" | Screw Size N/A M8 x 55 | Torque [Max] N/A 2969 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 3.150 in |
B122200 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2" | Screw Size N/A M8 x 55 | Torque [Max] N/A 3065 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 3.150 in |
B122202 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.125" | Screw Size N/A M8 x 55 | Torque [Max] N/A 3664 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 3.346 in |
B122203 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.1875" | Screw Size N/A M8 x 55 | Torque [Max] N/A 3771 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 3.346 in |
B122204 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.25" | Screw Size N/A M8 x 55 | Torque [Max] N/A 4310 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 3.543 in |
B122206 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.375" | Screw Size N/A M8 x 55 | Torque [Max] N/A 4550 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 3.543 in |
B122207 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.4375" | Screw Size N/A M8 x 55 | Torque [Max] N/A 4669 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 3.740 in |
B122208 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.5" | Screw Size N/A M8 x 55 | Torque [Max] N/A 4789 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 3.740 in |
B122209 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.5625" | Screw Size N/A M8 x 55 | Torque [Max] N/A 4909 lb·ft | Tightening Torque N/A 30 lb·ft | Outside Diameter N/A 3.740 in |
B122210 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.625" | Screw Size N/A M10 x 60 | Torque [Max] N/A 8155 lb·ft | Tightening Torque N/A 60 lb·ft | Outside Diameter N/A 4.331 in |
B122212 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.75" | Screw Size N/A M10 x 60 | Torque [Max] N/A 8543 lb·ft | Tightening Torque N/A 60 lb·ft | Outside Diameter N/A 4.331 in |
B122214 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.875" | Screw Size N/A M10 x 60 | Torque [Max] N/A 8932 lb·ft | Tightening Torque N/A 60 lb·ft | Outside Diameter N/A 4.331 in |
B122215 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 2.9375" | Screw Size N/A M10 x 60 | Torque [Max] N/A 10039 lb·ft | Tightening Torque N/A 60 lb·ft | Outside Diameter N/A 4.724 in |
B122300 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 3" | Screw Size N/A M10 x 60 | Torque [Max] N/A 10252 lb·ft | Tightening Torque N/A 60 lb·ft | Outside Diameter N/A 4.724 in |
B122304 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 3.25" | Screw Size N/A M10 x 60 | Torque [Max] N/A 11107 lb·ft | Tightening Torque N/A 60 lb·ft | Outside Diameter N/A 4.724 in |
B122306 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 3.375" | Screw Size N/A M10 x 60 | Torque [Max] N/A 12582 lb·ft | Tightening Torque N/A 60 lb·ft | Outside Diameter N/A 5.118 in |
B122307 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 3.4375" | Screw Size N/A M10 x 60 | Torque [Max] N/A 12815 lb·ft | Tightening Torque N/A 60 lb·ft | Outside Diameter N/A 5.118 in |
B122308 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 3.5" | Screw Size N/A M10 x 60 | Torque [Max] N/A 13048 lb·ft | Tightening Torque N/A 60 lb·ft | Outside Diameter N/A 5.118 in |
B122312 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 3.75" | Screw Size N/A M12 x 80 | Torque [Max] N/A 19172 lb·ft | Tightening Torque N/A 105 lb·ft | Outside Diameter N/A 5.709 in |
B122314 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 3.875" | Screw Size N/A M12 x 80 | Torque [Max] N/A 19811 lb·ft | Tightening Torque N/A 105 lb·ft | Outside Diameter N/A 5.709 in |
B122400 /Asset/B-LOC_B112.jpg | N/A B-LOC B112 4" | Screw Size N/A M12 x 80 | Torque [Max] N/A 20450 lb·ft | Tightening Torque N/A 105 lb·ft | Outside Diameter N/A 5.709 in |