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 B103 1-11/16"

  • Series: B103
  • Torque Transmission: 1494 ft lb
  • Axial Movement: Approximately 0.032"
  • Bore Tolerance: 2.955
  • Compliancy: RoHS
  • Component Bore Diameter: 2.953"
  • Hub Pressure: 24245
  • Installation Torque: 25 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 25
  • Self-Centering: Yes
  • Shaft Diameter: 1 11/16"
  • Shaft Tolerance: 1.6855
  • Taper: Single
  • Thrust: 21250

Image of B-LOC B103 1-1/2"

  • Series: B103
  • Torque Transmission: 792 ft lb
  • Axial Movement: Approximately 0.032"
  • Bore Tolerance: 2.561
  • Compliancy: RoHS
  • Component Bore Diameter: 2.559"
  • Hub Pressure: 19621
  • Installation Torque: 10 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M6 x 20
  • Self-Centering: Yes
  • Shaft Diameter: 1 1/2"
  • Shaft Tolerance: 1.498
  • Taper: Single
  • Thrust: 12669

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 1-5/8"

  • Series: B103
  • Torque Transmission: 1439 ft lb
  • Axial Movement: Approximately 0.032"
  • Bore Tolerance: 2.955
  • Compliancy: RoHS
  • Component Bore Diameter: 2.953"
  • Hub Pressure: 24245
  • Installation Torque: 25 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M8 x 25
  • Self-Centering: Yes
  • Shaft Diameter: 1 5/8"
  • Shaft Tolerance: 1.623
  • Taper: Single
  • Thrust: 21250

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 1-3/8"

  • Series: B103
  • Torque Transmission: 726 ft lb
  • Axial Movement: Approximately 0.032"
  • Bore Tolerance: 2.364
  • Compliancy: RoHS
  • Component Bore Diameter: 2.362"
  • Hub Pressure: 21256
  • Installation Torque: 10 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M6 x 20
  • Self-Centering: Yes
  • Shaft Diameter: 1 3/8"
  • Shaft Tolerance: 1.373
  • Taper: Single
  • Thrust: 12669

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 B103 1-7/16"

  • Series: B103
  • Torque Transmission: 759 ft lb
  • Axial Movement: Approximately 0.032"
  • Bore Tolerance: 2.561
  • Compliancy: RoHS
  • Component Bore Diameter: 2.559"
  • Hub Pressure: 19621
  • Installation Torque: 10 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M6 x 20
  • Self-Centering: Yes
  • Shaft Diameter: 1 7/16"
  • Shaft Tolerance: 1.4355
  • Taper: Single
  • Thrust: 12669

Image of B-LOC B103 130mm

  • Series: B103
  • Torque Transmission: 25452 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 180.08
  • Compliancy: RoHS
  • Component Bore Diameter: 180mm
  • 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: 130mm
  • Shaft Tolerance: 129.92
  • Taper: Single
  • Thrust: 391574

Image of B-LOC B103 80mm

B-LOC B103 80mm

More Information

  • Series: B103
  • Torque Transmission: 7030 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 120.08
  • Compliancy: RoHS
  • Component Bore Diameter: 120mm
  • Hub Pressure: 162
  • 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: 80mm
  • Shaft Tolerance: 79.95
  • Taper: Single
  • Thrust: 175750

Image of B-LOC B103 100mm

  • Series: B103
  • Torque Transmission: 13478 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 145.08
  • Compliancy: RoHS
  • Component Bore Diameter: 145mm
  • Hub Pressure: 190
  • Installation Torque: 122 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M12 x 35
  • Self-Centering: Yes
  • Shaft Diameter: 100mm
  • Shaft Tolerance: 99.95
  • Taper: Single
  • Thrust: 269557

Image of B-LOC B103 110mm

  • Series: B103
  • Torque Transmission: 14826 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 155.08
  • Compliancy: RoHS
  • Component Bore Diameter: 155mm
  • Hub Pressure: 177
  • Installation Torque: 122 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M12 x 35
  • Self-Centering: Yes
  • Shaft Diameter: 110mm
  • Shaft Tolerance: 109.95
  • Taper: Single
  • Thrust: 269557

Image of B-LOC B103 90mm

B-LOC B103 90mm

More Information

  • Series: B103
  • Torque Transmission: 8897 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 130.08
  • Compliancy: RoHS
  • Component Bore Diameter: 130mm
  • Hub Pressure: 168
  • 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: 90mm
  • Shaft Tolerance: 89.95
  • Taper: Single
  • Thrust: 197719

Image of B-LOC B103 140mm

  • Series: B103
  • Torque Transmission: 27410 Nm
  • Axial Movement: Approximately 0.8 mm
  • Bore Tolerance: 190.08
  • Compliancy: RoHS
  • Component Bore Diameter: 190mm
  • Hub Pressure: 161
  • 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: 140mm
  • Shaft Tolerance: 139.92
  • Taper: Single
  • Thrust: 391574
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