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 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 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 B112 40mm

    B-LOC B112 40mm

    More Information

    • Series: B112
    • Torque Transmission: 2886
    • Axial Movement: No
    • Bore Tolerance: 75.05
    • Compliancy: RoHS
    • Component Bore Diameter: 75mm
    • Hub Pressure: 150
    • Installation Torque: 41 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M8 x 45
    • Self-Centering: Yes
    • Shaft Diameter: 40mm
    • Shaft Tolerance: 39.95
    • Taper: Double
    • Thrust: 144304

    Image of B-LOC B112 45mm

    B-LOC B112 45mm

    More Information

    • Series: B112
    • Torque Transmission: 3247
    • Axial Movement: No
    • Bore Tolerance: 75.05
    • Compliancy: RoHS
    • Component Bore Diameter: 75mm
    • Hub Pressure: 150
    • Installation Torque: 41 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M8 x 45
    • Self-Centering: Yes
    • Shaft Diameter: 45mm
    • Shaft Tolerance: 44.95
    • Taper: Double
    • Thrust: 144304

    Image of B-LOC B112 38mm

    B-LOC B112 38mm

    More Information

    • Series: B112
    • Torque Transmission: 2742
    • Axial Movement: No
    • Bore Tolerance: 75.05
    • Compliancy: RoHS
    • Component Bore Diameter: 75mm
    • Hub Pressure: 150
    • Installation Torque: 41 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M8 x 45
    • Self-Centering: Yes
    • Shaft Diameter: 38mm
    • Shaft Tolerance: 37.95
    • Taper: Double
    • Thrust: 144304

    Image of B-LOC B106 42mm

    B-LOC B106 42mm

    More Information

    • Series: B106
    • Torque Transmission: 1515
    • Axial Movement: No
    • Bore Tolerance: 75.05
    • Compliancy: RoHS
    • Component Bore Diameter: 75mm
    • Hub Pressure: 128
    • 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: 42mm
    • Shaft Tolerance: 41.95
    • Taper: Single
    • Thrust: 72167

    Image of B-LOC B106 45mm

    B-LOC B106 45mm

    More Information

    • Series: B106
    • Torque Transmission: 1624
    • Axial Movement: No
    • Bore Tolerance: 75.05
    • Compliancy: RoHS
    • Component Bore Diameter: 75mm
    • Hub Pressure: 128
    • 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: 45mm
    • Shaft Tolerance: 44.95
    • Taper: Single
    • Thrust: 72167

    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 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

    Image of B-LOC B106 1-7/16"

    • Series: B106
    • Torque Transmission: 575
    • 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 7/16"
    • Shaft Tolerance: 1.4355
    • Taper: Single
    • Thrust: 9595

    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 B112 42mm

    B-LOC B112 42mm

    More Information

    • Series: B112
    • Torque Transmission: 3030
    • Axial Movement: No
    • Bore Tolerance: 75.05
    • Compliancy: RoHS
    • Component Bore Diameter: 75mm
    • Hub Pressure: 150
    • Installation Torque: 41 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M8 x 45
    • Self-Centering: Yes
    • Shaft Diameter: 42mm
    • Shaft Tolerance: 41.95
    • Taper: Double
    • Thrust: 144304
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