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 B103 170mm

  • Series: B103
  • Torque Transmission: 44378 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 225.08
  • Compliancy: RoHS
  • Component Bore Diameter: 225mm
  • Hub Pressure: 140
  • Installation Torque: 183 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M14 x 40
  • Self-Centering: Yes
  • Shaft Diameter: 170mm
  • Shaft Tolerance: 169.92
  • Taper: Single
  • Thrust: 522099

Image of B-LOC B400 170mm

  • Series: B400
  • Torque Transmission: 44752
  • Axial Movement: No
  • Bore Tolerance: 225.1
  • Component Bore Diameter: 225mm
  • Hub Pressure: 163
  • Installation Torque: 187 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M14 x 40
  • Self-Centering: No
  • Shaft Diameter: 170mm
  • Shaft Tolerance: 169.9
  • Taper: Double
  • Thrust: 526487

Image of B-LOC B400 100mm

  • Series: B400
  • Torque Transmission: 12800
  • Axial Movement: No
  • Bore Tolerance: 145.1
  • Component Bore Diameter: 145mm
  • Hub Pressure: 180
  • Installation Torque: 123 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M12 x 30
  • Self-Centering: No
  • Shaft Diameter: 100mm
  • Shaft Tolerance: 99.9
  • Taper: Double
  • Thrust: 255998

Image of B-LOC B400 150mm

  • Series: B400
  • Torque Transmission: 32917
  • Axial Movement: No
  • Bore Tolerance: 200.1
  • Component Bore Diameter: 200mm
  • Hub Pressure: 171
  • Installation Torque: 123 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M12 x 35
  • Self-Centering: No
  • Shaft Diameter: 150mm
  • Shaft Tolerance: 149.9
  • Taper: Double
  • Thrust: 438854

Image of B-LOC B103 95mm

B-LOC B103 95mm

More Information

  • Series: B103
  • Torque Transmission: 10435 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 135.08
  • Compliancy: RoHS
  • Component Bore Diameter: 135mm
  • Hub Pressure: 180
  • Installation Torque: 68 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M10 x 30
  • Self-Centering: Yes
  • Shaft Diameter: 95mm
  • Shaft Tolerance: 94.95
  • Taper: Single
  • Thrust: 219688

Image of B-LOC B103 150mm

  • Series: B103
  • Torque Transmission: 32631 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 200.08
  • Compliancy: RoHS
  • Component Bore Diameter: 200mm
  • Hub Pressure: 170
  • Installation Torque: 183 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M14 x 40
  • Self-Centering: Yes
  • Shaft Diameter: 150mm
  • Shaft Tolerance: 149.92
  • Taper: Single
  • Thrust: 435082

Image of B-LOC B103 18mm

B-LOC B103 18mm

More Information

  • Series: B103
  • Torque Transmission: 327 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 47.05
  • Compliancy: RoHS
  • Component Bore Diameter: 47mm
  • Hub Pressure: 121
  • Installation Torque: 14 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M6 x 20
  • Self-Centering: Yes
  • Shaft Diameter: 18mm
  • Shaft Tolerance: 17.95
  • Taper: Single
  • Thrust: 36371

Image of B-LOC B400 95mm

B-LOC B400 95mm

More Information

  • Series: B400
  • Torque Transmission: 10259
  • Axial Movement: No
  • Bore Tolerance: 135.1
  • Component Bore Diameter: 135mm
  • Hub Pressure: 177
  • Installation Torque: 69 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M10 x 25
  • Self-Centering: No
  • Shaft Diameter: 95mm
  • Shaft Tolerance: 94.9
  • Taper: Double
  • Thrust: 215984

Image of B-LOC B400 120mm

  • Series: B400
  • Torque Transmission: 17553
  • Axial Movement: No
  • Bore Tolerance: 165.1
  • Component Bore Diameter: 165mm
  • Hub Pressure: 181
  • Installation Torque: 123 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M12 x 30
  • Self-Centering: No
  • Shaft Diameter: 120mm
  • Shaft Tolerance: 119.9
  • Taper: Double
  • Thrust: 292569

Image of B-LOC B400 85mm

B-LOC B400 85mm

More Information

  • Series: B400
  • Torque Transmission: 8158
  • Axial Movement: No
  • Bore Tolerance: 125.1
  • Component Bore Diameter: 125mm
  • Hub Pressure: 170
  • Installation Torque: 69 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M10 x 25
  • Self-Centering: No
  • Shaft Diameter: 85mm
  • Shaft Tolerance: 84.9
  • Taper: Double
  • Thrust: 191986

Image of B-LOC B103 28mm

B-LOC B103 28mm

More Information

  • Series: B103
  • Torque Transmission: 611 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 55.05
  • Compliancy: RoHS
  • Component Bore Diameter: 55mm
  • Hub Pressure: 124
  • Installation Torque: 14 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M6 x 20
  • Self-Centering: Yes
  • Shaft Diameter: 28mm
  • Shaft Tolerance: 27.95
  • Taper: Single
  • Thrust: 43645

Image of B-LOC B103 180mm

  • Series: B103
  • Torque Transmission: 46989 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 235.08
  • Compliancy: RoHS
  • Component Bore Diameter: 235mm
  • Hub Pressure: 134
  • Installation Torque: 183 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M14 x 40
  • Self-Centering: Yes
  • Shaft Diameter: 180mm
  • Shaft Tolerance: 179.92
  • Taper: Single
  • Thrust: 522099

Image of B-LOC B103 160mm

  • Series: B103
  • Torque Transmission: 38287 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 210.08
  • Compliancy: RoHS
  • Component Bore Diameter: 210mm
  • Hub Pressure: 178
  • Installation Torque: 183 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M14 x 40
  • Self-Centering: Yes
  • Shaft Diameter: 160mm
  • Shaft Tolerance: 159.92
  • Taper: Single
  • Thrust: 478591

Image of B-LOC B400 25mm

B-LOC B400 25mm

More Information

  • Series: B400
  • Torque Transmission: 472
  • Axial Movement: No
  • Bore Tolerance: 50.08
  • Component Bore Diameter: 50mm
  • Hub Pressure: 118
  • Installation Torque: 15 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M6 x 18
  • Self-Centering: No
  • Shaft Diameter: 25mm
  • Shaft Tolerance: 24.92
  • Taper: Double
  • Thrust: 37756

Image of B-LOC B103 25mm

B-LOC B103 25mm

More Information

  • Series: B103
  • Torque Transmission: 546 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 50.05
  • Compliancy: RoHS
  • Component Bore Diameter: 50mm
  • Hub Pressure: 136
  • Installation Torque: 14 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M6 x 20
  • Self-Centering: Yes
  • Shaft Diameter: 25mm
  • Shaft Tolerance: 24.95
  • Taper: Single
  • Thrust: 43645

Image of B-LOC B400 24mm

B-LOC B400 24mm

More Information

  • Series: B400
  • Torque Transmission: 453
  • Axial Movement: No
  • Bore Tolerance: 50.08
  • Component Bore Diameter: 50mm
  • Hub Pressure: 118
  • Installation Torque: 15 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Releasing
  • Screw Size: M6 x 18
  • Self-Centering: No
  • Shaft Diameter: 24mm
  • Shaft Tolerance: 23.92
  • Taper: Double
  • Thrust: 37756
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