B-LOC Keyless Bushings

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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 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 B400 40mm

    B-LOC B400 40mm

    More Information

    • Series: B400
    • Torque Transmission: 1175
    • Axial Movement: No
    • Bore Tolerance: 65.08
    • Component Bore Diameter: 65mm
    • Hub Pressure: 141
    • 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: 40mm
    • Shaft Tolerance: 39.92
    • Taper: Double
    • Thrust: 58732

    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 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

    Image of B-LOC B400 30mm

    B-LOC B400 30mm

    More Information

    • Series: B400
    • Torque Transmission: 629
    • Axial Movement: No
    • Bore Tolerance: 55.08
    • Component Bore Diameter: 55mm
    • Hub Pressure: 119
    • 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: 30mm
    • Shaft Tolerance: 29.92
    • Taper: Double
    • Thrust: 41952

    Image of B-LOC B400 38mm

    B-LOC B400 38mm

    More Information

    • Series: B400
    • Torque Transmission: 1116
    • Axial Movement: No
    • Bore Tolerance: 65.08
    • Component Bore Diameter: 65mm
    • Hub Pressure: 141
    • 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: 38mm
    • Shaft Tolerance: 37.92
    • Taper: Double
    • Thrust: 58732

    Image of B-LOC B400 28mm

    B-LOC B400 28mm

    More Information

    • Series: B400
    • Torque Transmission: 587
    • Axial Movement: No
    • Bore Tolerance: 55.08
    • Component Bore Diameter: 55mm
    • Hub Pressure: 119
    • 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: 28mm
    • Shaft Tolerance: 27.92
    • Taper: Double
    • Thrust: 41952

    Image of B-LOC B400 45mm

    B-LOC B400 45mm

    More Information

    • Series: B400
    • Torque Transmission: 2027
    • Axial Movement: No
    • Bore Tolerance: 75.08
    • Component Bore Diameter: 75mm
    • Hub Pressure: 159
    • Installation Torque: 35 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Releasing
    • Screw Size: M8 x 22
    • Self-Centering: No
    • Shaft Diameter: 45mm
    • Shaft Tolerance: 44.92
    • Taper: Double
    • Thrust: 90071

    Image of B-LOC B400 22mm

    B-LOC B400 22mm

    More Information

    • Series: B400
    • Torque Transmission: 369
    • Axial Movement: No
    • Bore Tolerance: 47.05
    • Component Bore Diameter: 47mm
    • Hub Pressure: 111
    • 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: 22mm
    • Shaft Tolerance: 21.95
    • Taper: Double
    • Thrust: 33561

    Image of B-LOC B400 42mm

    B-LOC B400 42mm

    More Information

    • Series: B400
    • Torque Transmission: 1892
    • Axial Movement: No
    • Bore Tolerance: 75.08
    • Component Bore Diameter: 75mm
    • Hub Pressure: 159
    • Installation Torque: 35 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Releasing
    • Screw Size: M8 x 22
    • Self-Centering: No
    • Shaft Diameter: 42mm
    • Shaft Tolerance: 41.92
    • Taper: Double
    • Thrust: 90071

    Image of B-LOC B400 35mm

    B-LOC B400 35mm

    More Information

    • Series: B400
    • Torque Transmission: 881
    • 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: 35mm
    • Shaft Tolerance: 34.92
    • Taper: Double
    • Thrust: 50342

    Image of B-LOC B400 20mm

    B-LOC B400 20mm

    More Information

    • Series: B400
    • Torque Transmission: 335
    • Axial Movement: No
    • Bore Tolerance: 47.05
    • Component Bore Diameter: 47mm
    • Hub Pressure: 111
    • 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: 20mm
    • Shaft Tolerance: 19.95
    • Taper: Double
    • Thrust: 33561
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