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 130mm

  • Series: B112
  • Torque Transmission: 52658
  • Axial Movement: No
  • Bore Tolerance: 180.08
  • Compliancy: RoHS
  • Component Bore Diameter: 180mm
  • Hub Pressure: 142
  • Installation Torque: 225 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M14 x 90
  • Self-Centering: Yes
  • Shaft Diameter: 130mm
  • Shaft Tolerance: 129.92
  • Taper: Double
  • Thrust: 810116

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 B112 180mm

  • Series: B112
  • Torque Transmission: 124230
  • Axial Movement: No
  • Bore Tolerance: 235.08
  • Compliancy: RoHS
  • Component Bore Diameter: 235mm
  • Hub Pressure: 142
  • Installation Torque: 348 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M16 x 110
  • Self-Centering: Yes
  • Shaft Diameter: 180mm
  • Shaft Tolerance: 179.92
  • Taper: Double
  • Thrust: 1380329

Image of B-LOC B112 1-3/8"

  • Series: B112
  • Torque Transmission: 962
  • Axial Movement: No
  • Bore Tolerance: 2.364
  • Compliancy: RoHS
  • Component Bore Diameter: 2.362"
  • Hub Pressure: 14083
  • Installation Torque: 12 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M6 x 45
  • Self-Centering: Yes
  • Shaft Diameter: 1 3/8"
  • Shaft Tolerance: 1.373
  • Taper: Double
  • Thrust: 16788

Image of B-LOC B106 1-1/2"

  • Series: B106
  • Torque Transmission: 600
  • Axial Movement: No
  • Bore Tolerance: 2.561
  • Compliancy: RoHS
  • Component Bore Diameter: 2.559"
  • Hub Pressure: 14860
  • Installation Torque: 12 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: 9595

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 B112 160mm

  • Series: B112
  • Torque Transmission: 86412
  • Axial Movement: No
  • Bore Tolerance: 210.08
  • Compliancy: RoHS
  • Component Bore Diameter: 210mm
  • Hub Pressure: 162
  • Installation Torque: 225 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M14 x 90
  • Self-Centering: Yes
  • Shaft Diameter: 160mm
  • Shaft Tolerance: 159.92
  • Taper: Double
  • Thrust: 1080154

Image of B-LOC B400 1-3/4"

  • Series: B400
  • Torque Transmission: 1487
  • Axial Movement: No
  • Bore Tolerance: 2.956
  • Component Bore Diameter: 2.953"
  • Hub Pressure: 23267
  • 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 3/4"
  • Shaft Tolerance: 1.747
  • Taper: Double
  • Thrust: 20393

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

  • Series: B112
  • Torque Transmission: 874
  • Axial Movement: No
  • Bore Tolerance: 2.364
  • Compliancy: RoHS
  • Component Bore Diameter: 2.362"
  • Hub Pressure: 14083
  • Installation Torque: 12 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M6 x 45
  • Self-Centering: Yes
  • Shaft Diameter: 1 1/4"
  • Shaft Tolerance: 1.248
  • Taper: Double
  • Thrust: 16788

Image of B-LOC B112 1-7/16"

  • Series: B112
  • Torque Transmission: 1006
  • Axial Movement: No
  • Bore Tolerance: 2.364
  • Compliancy: RoHS
  • Component Bore Diameter: 2.362"
  • Hub Pressure: 14083
  • Installation Torque: 12 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M6 x 45
  • Self-Centering: Yes
  • Shaft Diameter: 1 7/16"
  • Shaft Tolerance: 1.4355
  • Taper: Double
  • Thrust: 16788

Image of B-LOC B106 1-5/8"

  • Series: B106
  • Torque Transmission: 1090
  • Axial Movement: No
  • Bore Tolerance: 2.955
  • Compliancy: RoHS
  • Component Bore Diameter: 2.953"
  • Hub Pressure: 18362
  • 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 5/8"
  • Shaft Tolerance: 1.623
  • Taper: Single
  • Thrust: 16094

Image of B-LOC B112 150mm

  • Series: B112
  • Torque Transmission: 75948
  • Axial Movement: No
  • Bore Tolerance: 200.08
  • Compliancy: RoHS
  • Component Bore Diameter: 200mm
  • Hub Pressure: 160
  • Installation Torque: 225 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M14 x 90
  • Self-Centering: Yes
  • Shaft Diameter: 150mm
  • Shaft Tolerance: 149.92
  • Taper: Double
  • Thrust: 1012645

Image of B-LOC B112 1-3/16"

  • Series: B112
  • Torque Transmission: 712
  • Axial Movement: No
  • Bore Tolerance: 2.167
  • Compliancy: RoHS
  • Component Bore Diameter: 2.165"
  • Hub Pressure: 18656
  • Installation Torque: 12 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Locking
  • Screw Size: M6 x 35
  • Self-Centering: Yes
  • Shaft Diameter: 1 3/16"
  • Shaft Tolerance: 1.1855
  • Taper: Double
  • Thrust: 14390

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 180mm

  • Series: B400
  • Torque Transmission: 51694
  • Axial Movement: No
  • Bore Tolerance: 235.1
  • Component Bore Diameter: 235mm
  • Hub Pressure: 171
  • 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: 180mm
  • Shaft Tolerance: 179.87
  • Taper: Double
  • Thrust: 574350

Image of B-LOC B400 1-7/16"

  • Series: B400
  • Torque Transmission: 786
  • Axial Movement: No
  • Bore Tolerance: 2.562
  • Component Bore Diameter: 2.559"
  • Hub Pressure: 20331
  • Installation Torque: 11 ft lb
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Inch
  • Releasing/ Locking: Releasing
  • Screw Size: M6 x 18
  • Self-Centering: No
  • Shaft Diameter: 1 7/16"
  • Shaft Tolerance: 1.4345
  • Taper: Double
  • Thrust: 13127
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