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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.
Straight Locking Assemblies
Unit of Measure
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Item #

Item Name

Screw Size

Torque [Max]

Tightening Torque

Outside Diameter

T402212 N/A B-LOC B400 2.75" N/A M10 x 25 N/A 4336 lb·ft N/A 51 lb·ft N/A 4.337 in
T402214 N/A B-LOC B400 2.875" N/A M10 x 25 N/A 4533 lb·ft N/A 51 lb·ft N/A 4.528 in
T402304 N/A B-LOC B400 3.25" N/A M10 x 25 N/A 5857 lb·ft N/A 51 lb·ft N/A 4.921 in
T402312 N/A B-LOC B400 3.75" N/A M10 x 25 N/A 7603 lb·ft N/A 51 lb·ft N/A 5.305 in
T402314 N/A B-LOC B400 3.875" N/A M12 x 30 N/A 9320 lb·ft N/A 91 lb·ft N/A 5.709 in
T402315 N/A B-LOC B400 3.9375" N/A M12 x 30 N/A 9471 lb·ft N/A 91 lb·ft N/A 5.709 in
T402500 N/A B-LOC B400 5" N/A M12 x 35 N/A 17180 lb·ft N/A 91 lb·ft N/A 7.087 in
T402508 N/A B-LOC B400 5.5" N/A M12 x 35 N/A 20788 lb·ft N/A 91 lb·ft N/A 7.492 in
T402607 N/A B-LOC B400 6.4375" N/A M14 x 40 N/A 31764 lb·ft N/A 138 lb·ft N/A 8.858 in
T402708 N/A B-LOC B400 7.5" N/A M14 x 45 N/A 47099 lb·ft N/A 138 lb·ft N/A 9.823 in
T402714 N/A B-LOC B400 7.875" N/A M14 x 45 N/A 52986 lb·ft N/A 138 lb·ft N/A 10.236 in
Unit of Measure
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