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 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 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 B400 1-15/16"

  • Series: B400
  • Torque Transmission: 1646
  • Axial Movement: No
  • Bore Tolerance: 3.153
  • Component Bore Diameter: 3.15"
  • Hub Pressure: 21812
  • Installation Torque: 26 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Releasing
  • Screw Size: M8 x 22
  • Self-Centering: No
  • Shaft Diameter: 1 15/16"
  • Shaft Tolerance: 1.9345
  • Taper: Double
  • Thrust: 20393

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 B106 1-15/16"

  • Series: B106
  • Torque Transmission: 1299
  • Axial Movement: No
  • Bore Tolerance: 3.152
  • Compliancy: RoHS
  • Component Bore Diameter: 3.15"
  • Hub Pressure: 17214
  • Installation Torque: 30 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 25
  • Self-Centering: Yes
  • Shaft Diameter: 1 15/16"
  • Shaft Tolerance: 1.9355
  • Taper: Single
  • Thrust: 16094

Image of B-LOC B400 1-7/8"

  • Series: B400
  • Torque Transmission: 1593
  • Axial Movement: No
  • Bore Tolerance: 3.153
  • Component Bore Diameter: 3.15"
  • Hub Pressure: 21812
  • Installation Torque: 26 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Releasing
  • Screw Size: M8 x 22
  • Self-Centering: No
  • Shaft Diameter: 1 7/8"
  • Shaft Tolerance: 1.872
  • Taper: Double
  • Thrust: 20393

Image of B-LOC B400 48mm

B-LOC B400 48mm

More Information

  • Series: B400
  • Torque Transmission: 2162
  • Axial Movement: No
  • Bore Tolerance: 80.08
  • Component Bore Diameter: 80mm
  • Hub Pressure: 149
  • Installation Torque: 35 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M8 x 22
  • Self-Centering: No
  • Shaft Diameter: 48mm
  • Shaft Tolerance: 47.92
  • Taper: Double
  • Thrust: 90071

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 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 B106 48mm

B-LOC B106 48mm

More Information

  • Series: B106
  • Torque Transmission: 1732
  • Axial Movement: No
  • Bore Tolerance: 80.05
  • Compliancy: RoHS
  • Component Bore Diameter: 80mm
  • Hub Pressure: 120
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 25
  • Self-Centering: Yes
  • Shaft Diameter: 48mm
  • Shaft Tolerance: 47.95
  • Taper: Single
  • Thrust: 72167

Image of B-LOC B112 1-7/8"

  • Series: B112
  • Torque Transmission: 2873
  • 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 7/8"
  • Shaft Tolerance: 1.873
  • Taper: Double
  • Thrust: 36779

Image of B-LOC B400 50mm

B-LOC B400 50mm

More Information

  • Series: B400
  • Torque Transmission: 2252
  • Axial Movement: No
  • Bore Tolerance: 80.08
  • Component Bore Diameter: 80mm
  • Hub Pressure: 149
  • Installation Torque: 35 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M8 x 22
  • Self-Centering: No
  • Shaft Diameter: 50mm
  • Shaft Tolerance: 49.92
  • Taper: Double
  • Thrust: 90071

Image of B-LOC B106 2"

B-LOC B106 2"

More Information

  • Series: B106
  • Torque Transmission: 1341
  • Axial Movement: No
  • Bore Tolerance: 3.152
  • Compliancy: RoHS
  • Component Bore Diameter: 3.15"
  • Hub Pressure: 17214
  • Installation Torque: 30 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 25
  • Self-Centering: Yes
  • Shaft Diameter: 2"
  • Shaft Tolerance: 1.998
  • Taper: Single
  • Thrust: 16094

Image of B-LOC B400 55mm

B-LOC B400 55mm

More Information

  • Series: B400
  • Torque Transmission: 2889
  • Axial Movement: No
  • Bore Tolerance: 85.08
  • Component Bore Diameter: 85mm
  • Hub Pressure: 164
  • Installation Torque: 35 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M8 x 22
  • Self-Centering: No
  • Shaft Diameter: 55mm
  • Shaft Tolerance: 54.92
  • Taper: Double
  • Thrust: 105083

Image of B-LOC B106 50mm

B-LOC B106 50mm

More Information

  • Series: B106
  • Torque Transmission: 1804
  • Axial Movement: No
  • Bore Tolerance: 80.05
  • Compliancy: RoHS
  • Component Bore Diameter: 80mm
  • Hub Pressure: 120
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 25
  • Self-Centering: Yes
  • Shaft Diameter: 50mm
  • Shaft Tolerance: 49.95
  • Taper: Single
  • Thrust: 72167

Image of B-LOC B106 55mm

B-LOC B106 55mm

More Information

  • Series: B106
  • Torque Transmission: 2268
  • Axial Movement: No
  • Bore Tolerance: 85.05
  • Compliancy: RoHS
  • Component Bore Diameter: 85mm
  • Hub Pressure: 129
  • Installation Torque: 41 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 25
  • Self-Centering: Yes
  • Shaft Diameter: 55mm
  • Shaft Tolerance: 54.95
  • Taper: Single
  • Thrust: 82476
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