B-LOC Keyless Bushings

B-LOC Logo

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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Image of B-LOC B112 2-3/8"

  • Series: B112
  • Torque Transmission: 4550
  • Axial Movement: No
  • Bore Tolerance: 3.545
  • Compliancy: RoHS
  • Component Bore Diameter: 3.543"
  • Hub Pressure: 19868
  • Installation Torque: 30 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 55
  • Self-Centering: Yes
  • Shaft Diameter: 2 3/8"
  • Shaft Tolerance: 2.373
  • Taper: Double
  • Thrust: 45974

Image of B-LOC B112 55mm

B-LOC B112 55mm

More Information

  • Series: B112
  • Torque Transmission: 5102
  • Axial Movement: No
  • Bore Tolerance: 85.05
  • Compliancy: RoHS
  • Component Bore Diameter: 85mm
  • Hub Pressure: 132
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 55
  • Self-Centering: Yes
  • Shaft Diameter: 55mm
  • Shaft Tolerance: 54.95
  • Taper: Double
  • Thrust: 185533

Image of B-LOC B112 1-3/4"

  • Series: B112
  • Torque Transmission: 2347
  • Axial Movement: No
  • Bore Tolerance: 2.955
  • Compliancy: RoHS
  • Component Bore Diameter: 2.953"
  • Hub Pressure: 21598
  • Installation Torque: 30 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 50
  • Self-Centering: Yes
  • Shaft Diameter: 1 3/4"
  • Shaft Tolerance: 1.748
  • Taper: Double
  • Thrust: 32182

Image of B-LOC B112 50mm

B-LOC B112 50mm

More Information

  • Series: B112
  • Torque Transmission: 4123
  • Axial Movement: No
  • Bore Tolerance: 80.05
  • Compliancy: RoHS
  • Component Bore Diameter: 80mm
  • Hub Pressure: 124
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 55
  • Self-Centering: Yes
  • Shaft Diameter: 50mm
  • Shaft Tolerance: 49.95
  • Taper: Double
  • Thrust: 164918

Image of B-LOC B112 2-7/16"

  • Series: B112
  • Torque Transmission: 4669
  • Axial Movement: No
  • Bore Tolerance: 3.742
  • Compliancy: RoHS
  • Component Bore Diameter: 3.74"
  • Hub Pressure: 18822
  • Installation Torque: 30 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 55
  • Self-Centering: Yes
  • Shaft Diameter: 2 7/16"
  • Shaft Tolerance: 2.4355
  • Taper: Double
  • Thrust: 45974

Image of B-LOC B112 48mm

B-LOC B112 48mm

More Information

  • Series: B112
  • Torque Transmission: 3958
  • Axial Movement: No
  • Bore Tolerance: 80.05
  • Compliancy: RoHS
  • Component Bore Diameter: 80mm
  • Hub Pressure: 124
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 55
  • Self-Centering: Yes
  • Shaft Diameter: 48mm
  • Shaft Tolerance: 47.95
  • Taper: Double
  • Thrust: 164918

Image of B-LOC B112 65mm

B-LOC B112 65mm

More Information

  • Series: B112
  • Torque Transmission: 6700
  • Axial Movement: No
  • Bore Tolerance: 95.05
  • Compliancy: RoHS
  • Component Bore Diameter: 95mm
  • Hub Pressure: 131
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 55
  • Self-Centering: Yes
  • Shaft Diameter: 65mm
  • Shaft Tolerance: 64.95
  • Taper: Double
  • Thrust: 206148

Image of B-LOC B112 60mm

B-LOC B112 60mm

More Information

  • Series: B112
  • Torque Transmission: 6184
  • Axial Movement: No
  • Bore Tolerance: 90.05
  • Compliancy: RoHS
  • Component Bore Diameter: 90mm
  • Hub Pressure: 138
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 55
  • Self-Centering: Yes
  • Shaft Diameter: 60mm
  • Shaft Tolerance: 59.95
  • Taper: Double
  • Thrust: 206148

Image of B-LOC B112 40mm

B-LOC B112 40mm

More Information

  • Series: B112
  • Torque Transmission: 2886
  • Axial Movement: No
  • Bore Tolerance: 75.05
  • Compliancy: RoHS
  • Component Bore Diameter: 75mm
  • Hub Pressure: 150
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 45
  • Self-Centering: Yes
  • Shaft Diameter: 40mm
  • Shaft Tolerance: 39.95
  • Taper: Double
  • Thrust: 144304

Image of B-LOC B112 2-1/4"

  • Series: B112
  • Torque Transmission: 4310
  • Axial Movement: No
  • Bore Tolerance: 3.545
  • Compliancy: RoHS
  • Component Bore Diameter: 3.543"
  • Hub Pressure: 19868
  • Installation Torque: 30 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 55
  • Self-Centering: Yes
  • Shaft Diameter: 2 1/4"
  • Shaft Tolerance: 2.248
  • Taper: Double
  • Thrust: 45974

Image of B-LOC B112 45mm

B-LOC B112 45mm

More Information

  • Series: B112
  • Torque Transmission: 3247
  • Axial Movement: No
  • Bore Tolerance: 75.05
  • Compliancy: RoHS
  • Component Bore Diameter: 75mm
  • Hub Pressure: 150
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 45
  • Self-Centering: Yes
  • Shaft Diameter: 45mm
  • Shaft Tolerance: 44.95
  • Taper: Double
  • Thrust: 144304

Image of B-LOC B112 2"

B-LOC B112 2"

More Information

  • Series: B112
  • Torque Transmission: 3065
  • Axial Movement: No
  • Bore Tolerance: 3.152
  • Compliancy: RoHS
  • Component Bore Diameter: 3.15"
  • Hub Pressure: 17881
  • Installation Torque: 30 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 55
  • Self-Centering: Yes
  • Shaft Diameter: 2"
  • Shaft Tolerance: 1.998
  • Taper: Double
  • Thrust: 36779

Image of B-LOC B112 38mm

B-LOC B112 38mm

More Information

  • Series: B112
  • Torque Transmission: 2742
  • Axial Movement: No
  • Bore Tolerance: 75.05
  • Compliancy: RoHS
  • Component Bore Diameter: 75mm
  • Hub Pressure: 150
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 45
  • Self-Centering: Yes
  • Shaft Diameter: 38mm
  • Shaft Tolerance: 37.95
  • Taper: Double
  • Thrust: 144304

Image of B-LOC B112 1-15/16"

  • Series: B112
  • Torque Transmission: 2969
  • Axial Movement: No
  • Bore Tolerance: 3.152
  • Compliancy: RoHS
  • Component Bore Diameter: 3.15"
  • Hub Pressure: 17881
  • Installation Torque: 30 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 55
  • Self-Centering: Yes
  • Shaft Diameter: 1 15/16"
  • Shaft Tolerance: 1.9355
  • Taper: Double
  • Thrust: 36779

Image of B-LOC B112 1-5/8"

  • Series: B112
  • Torque Transmission: 2179
  • Axial Movement: No
  • Bore Tolerance: 2.955
  • Compliancy: RoHS
  • Component Bore Diameter: 2.953"
  • Hub Pressure: 21598
  • Installation Torque: 30 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 50
  • Self-Centering: Yes
  • Shaft Diameter: 1 5/8"
  • Shaft Tolerance: 1.623
  • Taper: Double
  • Thrust: 32182

Image of B-LOC B112 1-1/2"

  • Series: B112
  • Torque Transmission: 2011
  • Axial Movement: No
  • Bore Tolerance: 2.955
  • Compliancy: RoHS
  • Component Bore Diameter: 2.953"
  • Hub Pressure: 21598
  • Installation Torque: 30 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 50
  • Self-Centering: Yes
  • Shaft Diameter: 1 1/2"
  • Shaft Tolerance: 1.498
  • Taper: Double
  • Thrust: 32182
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