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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)
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 |
---|---|---|---|---|---|
B402115 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 1.9375" | Screw Size N/A M8 x 22 | Torque [Max] N/A 1646 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 3.150 in |
B402200 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 2" | Screw Size N/A M8 x 22 | Torque [Max] N/A 1983 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 3.346 in |
B402202 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 2.125" | Screw Size N/A M8 x 22 | Torque [Max] N/A 2107 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 3.346 in |
B402203 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 2.1875" | Screw Size N/A M8 x 22 | Torque [Max] N/A 2169 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 3.543 in |
B402204 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 2.25" | Screw Size N/A M8 x 22 | Torque [Max] N/A 2231 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 3.543 in |
B402207 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 2.4375" | Screw Size N/A M8 x 22 | Torque [Max] N/A 2762 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 3.740 in |
B402208 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 2.5" | Screw Size N/A M8 x 22 | Torque [Max] N/A 2832 lb·ft | Tightening Torque N/A 26 lb·ft | Outside Diameter N/A 3.740 in |
B402210 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 2.625" | Screw Size N/A M10 x 25 | Torque [Max] N/A 4139 lb·ft | Tightening Torque N/A 51 lb·ft | Outside Diameter N/A 4.331 in |
B402211 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 2.6875" | Screw Size N/A M10 x 25 | Torque [Max] N/A 4238 lb·ft | Tightening Torque N/A 51 lb·ft | Outside Diameter N/A 4.331 in |
B402215 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 2.9375" | Screw Size N/A M10 x 25 | Torque [Max] N/A 4632 lb·ft | Tightening Torque N/A 51 lb·ft | Outside Diameter N/A 4.528 in |
B402300 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 3" | Screw Size N/A M10 x 25 | Torque [Max] N/A 4730 lb·ft | Tightening Torque N/A 51 lb·ft | Outside Diameter N/A 4.724 in |
B402302 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 3.125" | Screw Size N/A M10 x 25 | Torque [Max] N/A 4928 lb·ft | Tightening Torque N/A 51 lb·ft | Outside Diameter N/A 4.724 in |
B402306 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 3.375" | Screw Size N/A M10 x 25 | Torque [Max] N/A 6082 lb·ft | Tightening Torque N/A 51 lb·ft | Outside Diameter N/A 4.921 in |
B402307 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 3.4375" | Screw Size N/A M10 x 25 | Torque [Max] N/A 6195 lb·ft | Tightening Torque N/A 51 lb·ft | Outside Diameter N/A 5.118 in |
B402308 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 3.5" | Screw Size N/A M10 x 25 | Torque [Max] N/A 6307 lb·ft | Tightening Torque N/A 51 lb·ft | Outside Diameter N/A 5.118 in |
B402400 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 4" | Screw Size N/A M12 x 30 | Torque [Max] N/A 9621 lb·ft | Tightening Torque N/A 91 lb·ft | Outside Diameter N/A 5.843 in |
B402407 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 4.4375" | Screw Size N/A M12 x 30 | Torque [Max] N/A 12198 lb·ft | Tightening Torque N/A 91 lb·ft | Outside Diameter N/A 6.496 in |
B402408 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 4.5" | Screw Size N/A M12 x 30 | Torque [Max] N/A 12370 lb·ft | Tightening Torque N/A 91 lb·ft | Outside Diameter N/A 6.496 in |
B402415 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 4.9375" | Screw Size N/A M12 x 35 | Torque [Max] N/A 16966 lb·ft | Tightening Torque N/A 91 lb·ft | Outside Diameter N/A 7.087 in |
B402507 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 5.4375" | Screw Size N/A M12 x 35 | Torque [Max] N/A 20552 lb·ft | Tightening Torque N/A 91 lb·ft | Outside Diameter N/A 7.480 in |
B402600 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 6" | Screw Size N/A M12 x 35 | Torque [Max] N/A 26801 lb·ft | Tightening Torque N/A 91 lb·ft | Outside Diameter N/A 8.268 in |
B402608 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 6.5" | Screw Size N/A M14 x 40 | Torque [Max] N/A 32072 lb·ft | Tightening Torque N/A 138 lb·ft | Outside Diameter N/A 8.858 in |
B402615 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 6.9375" | Screw Size N/A M14 x 40 | Torque [Max] N/A 37343 lb·ft | Tightening Torque N/A 138 lb·ft | Outside Diameter N/A 9.252 in |
B402700 /Asset/B-LOC_B400.jpg | N/A B-LOC B400 7" | Screw Size N/A M14 x 40 | Torque [Max] N/A 37679 lb·ft | Tightening Torque N/A 138 lb·ft | Outside Diameter N/A 9.252 in |
BCH201012-016 /Asset/BCH_20.jpg | N/A BCH20 12 mm M4 x 16 | Screw Size N/A M4 x 16 | Torque [Max] N/A 65 N·m | Tightening Torque N/A 5 N·m | Outside Diameter N/A 38 mm |