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 B103 1-11/16"

    • Series: B103
    • Torque Transmission: 1494 ft lb
    • Axial Movement: Approximately 0.032"
    • Bore Tolerance: 2.955
    • Compliancy: RoHS
    • Component Bore Diameter: 2.953"
    • Hub Pressure: 24245
    • Installation Torque: 25 ft lb
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Inch
    • Releasing/ Locking: Locking
    • Screw Size: M8 x 25
    • Self-Centering: Yes
    • Shaft Diameter: 1 11/16"
    • Shaft Tolerance: 1.6855
    • Taper: Single
    • Thrust: 21250

    Image of B-LOC B103 1-1/2"

    • Series: B103
    • Torque Transmission: 792 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 1/2"
    • Shaft Tolerance: 1.498
    • Taper: Single
    • Thrust: 12669

    Image of B-LOC B103 1-5/8"

    • Series: B103
    • Torque Transmission: 1439 ft lb
    • Axial Movement: Approximately 0.032"
    • Bore Tolerance: 2.955
    • Compliancy: RoHS
    • Component Bore Diameter: 2.953"
    • Hub Pressure: 24245
    • Installation Torque: 25 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: 21250

    Image of B-LOC B103 18mm

    B-LOC B103 18mm

    More Information

    • Series: B103
    • Torque Transmission: 327 Nm
    • Axial Movement: Approximately 0.8 mm
    • Bore Tolerance: 47.05
    • Compliancy: RoHS
    • Component Bore Diameter: 47mm
    • Hub Pressure: 121
    • Installation Torque: 14 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: 36371

    Image of B-LOC B103 1-3/8"

    • Series: B103
    • Torque Transmission: 726 ft lb
    • Axial Movement: Approximately 0.032"
    • Bore Tolerance: 2.364
    • Compliancy: RoHS
    • Component Bore Diameter: 2.362"
    • Hub Pressure: 21256
    • 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 3/8"
    • Shaft Tolerance: 1.373
    • Taper: Single
    • Thrust: 12669

    Image of B-LOC B103 28mm

    B-LOC B103 28mm

    More Information

    • Series: B103
    • Torque Transmission: 611 Nm
    • Axial Movement: Approximately 0.8 mm
    • Bore Tolerance: 55.05
    • Compliancy: RoHS
    • Component Bore Diameter: 55mm
    • Hub Pressure: 124
    • Installation Torque: 14 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M6 x 20
    • Self-Centering: Yes
    • Shaft Diameter: 28mm
    • Shaft Tolerance: 27.95
    • Taper: Single
    • Thrust: 43645

    Image of B-LOC B103 25mm

    B-LOC B103 25mm

    More Information

    • Series: B103
    • Torque Transmission: 546 Nm
    • Axial Movement: Approximately 0.8 mm
    • Bore Tolerance: 50.05
    • Compliancy: RoHS
    • Component Bore Diameter: 50mm
    • Hub Pressure: 136
    • Installation Torque: 14 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M6 x 20
    • Self-Centering: Yes
    • Shaft Diameter: 25mm
    • Shaft Tolerance: 24.95
    • Taper: Single
    • Thrust: 43645

    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 B103 30mm

    B-LOC B103 30mm

    More Information

    • Series: B103
    • Torque Transmission: 655 Nm
    • Axial Movement: Approximately 0.8 mm
    • Bore Tolerance: 55.05
    • Compliancy: RoHS
    • Component Bore Diameter: 55mm
    • Hub Pressure: 124
    • Installation Torque: 14 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M6 x 20
    • Self-Centering: Yes
    • Shaft Diameter: 30mm
    • Shaft Tolerance: 29.95
    • Taper: Single
    • Thrust: 43645

    Image of B-LOC B103 20mm

    B-LOC B103 20mm

    More Information

    • Series: B103
    • Torque Transmission: 364 Nm
    • Axial Movement: Approximately 0.8 mm
    • Bore Tolerance: 47.05
    • Compliancy: RoHS
    • Component Bore Diameter: 47mm
    • Hub Pressure: 121
    • Installation Torque: 14 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M6 x 20
    • Self-Centering: Yes
    • Shaft Diameter: 20mm
    • Shaft Tolerance: 19.95
    • Taper: Single
    • Thrust: 36371

    Image of B-LOC B103 22mm

    B-LOC B103 22mm

    More Information

    • Series: B103
    • Torque Transmission: 400 Nm
    • Axial Movement: Approximately 0.8 mm
    • Bore Tolerance: 47.05
    • Compliancy: RoHS
    • Component Bore Diameter: 47mm
    • Hub Pressure: 121
    • Installation Torque: 14 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M6 x 20
    • Self-Centering: Yes
    • Shaft Diameter: 22mm
    • Shaft Tolerance: 21.95
    • Taper: Single
    • Thrust: 36371

    Image of B-LOC B103 24mm

    B-LOC B103 24mm

    More Information

    • Series: B103
    • Torque Transmission: 524 Nm
    • Axial Movement: Approximately 0.8 mm
    • Bore Tolerance: 50.05
    • Compliancy: RoHS
    • Component Bore Diameter: 50mm
    • Hub Pressure: 136
    • Installation Torque: 14 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M6 x 20
    • Self-Centering: Yes
    • Shaft Diameter: 24mm
    • Shaft Tolerance: 23.95
    • Taper: Single
    • Thrust: 43645

    Image of B-LOC B103 19mm

    B-LOC B103 19mm

    More Information

    • Series: B103
    • Torque Transmission: 346 Nm
    • Axial Movement: Approximately 0.8 mm
    • Bore Tolerance: 47.05
    • Compliancy: RoHS
    • Component Bore Diameter: 47mm
    • Hub Pressure: 121
    • Installation Torque: 14 Nm
    • Internal/ External: Internal
    • Material: Steel
    • Metric/Inch: Metric
    • Releasing/ Locking: Locking
    • Screw Size: M6 x 20
    • Self-Centering: Yes
    • Shaft Diameter: 19mm
    • Shaft Tolerance: 18.95
    • Taper: Single
    • Thrust: 36371

    Image of B-LOC B103 1-1/4"

    • Series: B103
    • Torque Transmission: 660 ft lb
    • Axial Movement: Approximately 0.032"
    • Bore Tolerance: 2.364
    • Compliancy: RoHS
    • Component Bore Diameter: 2.362"
    • Hub Pressure: 21256
    • 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 1/4"
    • Shaft Tolerance: 1.248
    • Taper: Single
    • Thrust: 12669
      Back To Top