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

    Image of B-LOC B112 190mm

    • Series: B112
    • Torque Transmission: 139873
    • Axial Movement: No
    • Bore Tolerance: 250.08
    • Compliancy: RoHS
    • Component Bore Diameter: 250mm
    • 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: 190mm
    • Shaft Tolerance: 189.92
    • Taper: Double
    • Thrust: 1472351

    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 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 120mm

    • Series: B112
    • Torque Transmission: 41575
    • Axial Movement: No
    • Bore Tolerance: 165.08
    • Compliancy: RoHS
    • Component Bore Diameter: 165mm
    • Hub Pressure: 159
    • Installation Torque: 142 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M12 x 80
    • Self-Centering: Yes
    • Shaft Diameter: 120mm
    • Shaft Tolerance: 119.92
    • Taper: Double
    • Thrust: 692914

    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 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 110mm

    • Series: B112
    • Torque Transmission: 32666
    • Axial Movement: No
    • Bore Tolerance: 155.08
    • Compliancy: RoHS
    • Component Bore Diameter: 155mm
    • Hub Pressure: 145
    • Installation Torque: 142 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M12 x 80
    • Self-Centering: Yes
    • Shaft Diameter: 110mm
    • Shaft Tolerance: 109.92
    • Taper: Double
    • Thrust: 593927

    Image of B-LOC B112 200mm

    • Series: B112
    • Torque Transmission: 147235
    • Axial Movement: No
    • Bore Tolerance: 260.08
    • Compliancy: RoHS
    • Component Bore Diameter: 260mm
    • Hub Pressure: 137
    • 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: 200mm
    • Shaft Tolerance: 199.92
    • Taper: Double
    • Thrust: 1472351

    Image of B-LOC B112 140mm

    • Series: B112
    • Torque Transmission: 66159
    • Axial Movement: No
    • Bore Tolerance: 190.08
    • Compliancy: RoHS
    • Component Bore Diameter: 190mm
    • Hub Pressure: 157
    • 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: 140mm
    • Shaft Tolerance: 139.92
    • Taper: Double
    • Thrust: 945135

    Image of B-LOC B112 170mm

    • Series: B112
    • Torque Transmission: 109506
    • Axial Movement: No
    • Bore Tolerance: 225.08
    • Compliancy: RoHS
    • Component Bore Diameter: 225mm
    • Hub Pressure: 138
    • 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: 170mm
    • Shaft Tolerance: 169.92
    • Taper: Double
    • Thrust: 1288307
      Back To Top