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.

Helpful Design Tools:

CAD Drawings >>
B-LOC Interchange Guide >>
Hub OD Calculator >>

Can’t find what you're looking for?  Please download our Keyless Locking Devices Catalog to view our full product offering.

To compare items, select up to 4 and click here

  • Page:

Image of B-LOC B106 190mm

  • Series: B106
  • Torque Transmission: 48110
  • Axial Movement: No
  • Bore Tolerance: 250.08
  • Compliancy: RoHS
  • Component Bore Diameter: 250mm
  • Hub Pressure: 122
  • Installation Torque: 225 Nm
  • Internal/ External: Internal
  • Material: Steel
  • Metric/Inch: Metric
  • Releasing/ Locking: Locking
  • Screw Size: M14 x 40
  • Self-Centering: Yes
  • Shaft Diameter: 190mm
  • Shaft Tolerance: 189.92
  • Taper: Single
  • Thrust: 506425

Image of B-LOC B400 1-5/8"

  • Series: B400
  • Torque Transmission: 1381
  • 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 5/8"
  • Shaft Tolerance: 1.622
  • Taper: Double
  • Thrust: 20393

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

  • Series: B400
  • Torque Transmission: 586
  • Axial Movement: No
  • Bore Tolerance: 2.365
  • Component Bore Diameter: 2.362"
  • Hub Pressure: 18880
  • 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 1/4"
  • Shaft Tolerance: 1.247
  • Taper: Double
  • Thrust: 11252

Image of B-LOC B106 80mm

B-LOC B106 80mm

More Information

  • Series: B106
  • Torque Transmission: 5285
  • Axial Movement: No
  • Bore Tolerance: 120.08
  • Compliancy: RoHS
  • Component Bore Diameter: 120mm
  • Hub Pressure: 122
  • Installation Torque: 81 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: 79.92
  • Taper: Single
  • Thrust: 132127

Image of B-LOC B106 18mm

B-LOC B106 18mm

More Information

  • Series: B106
  • Torque Transmission: 236
  • Axial Movement: No
  • Bore Tolerance: 47.05
  • Compliancy: RoHS
  • Component Bore Diameter: 47mm
  • Hub Pressure: 87
  • Installation Torque: 16 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: 26234

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

  • Series: B106
  • Torque Transmission: 2155
  • Axial Movement: No
  • Bore Tolerance: 3.742
  • Compliancy: RoHS
  • Component Bore Diameter: 3.74"
  • Hub Pressure: 18638
  • 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 1/2"
  • Shaft Tolerance: 2.498
  • Taper: Single
  • Thrust: 20693

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 1-1/2"

  • Series: B400
  • Torque Transmission: 820
  • 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 1/2"
  • Shaft Tolerance: 1.497
  • Taper: Double
  • Thrust: 13127

Image of B-LOC B400 32mm

B-LOC B400 32mm

More Information

  • Series: B400
  • Torque Transmission: 806
  • Axial Movement: No
  • Bore Tolerance: 60.08
  • Component Bore Diameter: 60mm
  • Hub Pressure: 131
  • 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: 32mm
  • Shaft Tolerance: 31.92
  • Taper: Double
  • Thrust: 50342

Image of B-LOC B106 100mm

  • Series: B106
  • Torque Transmission: 9901
  • Axial Movement: No
  • Bore Tolerance: 145.08
  • Compliancy: RoHS
  • Component Bore Diameter: 145mm
  • Hub Pressure: 139
  • Installation Torque: 142 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: 99.92
  • Taper: Single
  • Thrust: 198016

Image of B-LOC B106 60mm

B-LOC B106 60mm

More Information

  • Series: B106
  • Torque Transmission: 2474
  • Axial Movement: No
  • Bore Tolerance: 90.05
  • Compliancy: RoHS
  • Component Bore Diameter: 90mm
  • Hub Pressure: 122
  • 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: 60mm
  • Shaft Tolerance: 59.95
  • Taper: Single
  • Thrust: 82476

Image of B-LOC B106 130mm

  • Series: B106
  • Torque Transmission: 19751
  • Axial Movement: No
  • Bore Tolerance: 180.08
  • Compliancy: RoHS
  • Component Bore Diameter: 180mm
  • Hub Pressure: 132
  • Installation Torque: 225 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: 303855

Image of B-LOC B106 1-1/4"

  • Series: B106
  • Torque Transmission: 500
  • Axial Movement: No
  • Bore Tolerance: 2.364
  • Compliancy: RoHS
  • Component Bore Diameter: 2.362"
  • Hub Pressure: 16099
  • 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 1/4"
  • Shaft Tolerance: 1.248
  • Taper: Single
  • Thrust: 9595

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 B400 1-1/8"

  • Series: B400
  • Torque Transmission: 440
  • Axial Movement: No
  • Bore Tolerance: 2.168
  • Component Bore Diameter: 2.165"
  • Hub Pressure: 17162
  • 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 1/8"
  • Shaft Tolerance: 1.122
  • Taper: Double
  • Thrust: 9377
  • Page:
Back To Top