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Internal Shaft Locking Devices (SLD 1500, 1850, 1750, 1350, 1450, 2600, 1900, & 350)

Lovejoy Shaft Locking Devices connect hubs solidly to shafts, using a keyless mechanical interference fit, to transmit torque or to withstand axial thrust. This mechanical interference fit utilizes screw tension in the Shaft Locking Device, converted into radial pressure via an inclined plane. This pressure expands the Shaft Locking Device to eliminate the gap between the hub and the shaft. The Shaft Locking Device uses the friction bond between the Shaft Locking Device and the shaft/hub to create a zero backlash connection. This connection is easily releasable to remove the mechanical interference fit.

Lovejoy Shaft Locking Devices expand to fill the gap between the shaft and hub, allowing for easy installation and removal, saving time over traditional interference fit techniques. The contact pressures created using a Shaft Locking Device can be greater than traditional interference fit pressures, allowing for more torque to be transmitted or shorter hubs to be used. The easy installation also allows the hub to be positioned more accurately on the shaft, and can facilitate angular timing of the hub.

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SLD 1500 Series - Inch (Imperial)
SLD 1500 Series - Inch (Imperial)
(52)
- Medium high torque
- Self releasing
- Not self-centering
- Axial hub position fixed during clamping
- Metric shafts 17 mm to 400 mm
- Inch shafts 3/4 to 7-15/16 inch
- Larger sizes on request
- 170 - 565,563 ft-lb
SLD 1500 Series - Metric
SLD 1500 Series - Metric
(52)
- Medium high torque
- Self releasing
- Not self-centering
- Axial hub position fixed during clamping
- Metric shafts 17 mm to 400 mm
- Inch shafts 3/4 to 7-15/16 inch
- Larger sizes on request
- 170 - 565,563 ft-lb
SLD 1850 Series - Inch (Imperial)
SLD 1850 Series - Inch (Imperial)
(33)
- High torque
- Exceptional concentricity
- Self-centering
- Axial hub position can move during clamping
- Metric shafts 18 mm to 200 mm
- Inch shafts 3/4 to 4 inch
- Larger sizes on request
- 273 - 44,625 ft-lb
SLD 1850 Series - Metric
SLD 1850 Series - Metric
(36)
- High torque
- Exceptional concentricity
- Self-centering
- Axial hub position can move during clamping
- Metric shafts 18 mm to 200 mm
- Inch shafts 3/4 to 4 inch
- Larger sizes on request
- 273 - 44,625 ft-lb
SLD 1750 Series - Inch (Imperial)
SLD 1750 Series - Inch (Imperial)
(34)
- High torque
- Exceptional concentricity
- Self-centering
- Axial hub position fixed during clamping
- Metric shafts 18 mm to 200 mm
- Inch shafts 3/4 to 4 inch
- Larger sizes on request
- 214 - 35,948 ft-lb
SLD 1750 Series - Metric
SLD 1750 Series - Metric
(36)
- High torque
- Exceptional concentricity
- Self-centering
- Axial hub position fixed during clamping
- Metric shafts 18 mm to 200 mm
- Inch shafts 3/4 to 4 inch
- Larger sizes on request
- 214 - 35,948 ft-lb
SLD 1350 Series - Inch (Imperial)
SLD 1350 Series - Inch (Imperial)
(34)
- High torque
- Exceptional concentricity
- Self-centering
- Axial hub position can move during clamping
- Metric shafts 18 mm to 200 mm
- Inch shafts 3/4 to 4 inch
- Larger sizes on request
- 259 - 40,274 ft-lb
SLD 1350 Series - Metric
SLD 1350 Series - Metric
(35)
- High torque
- Exceptional concentricity
- Self-centering
- Axial hub position can move during clamping
- Metric shafts 18 mm to 200 mm
- Inch shafts 3/4 to 4 inch
- Larger sizes on request
- 259 - 40,274 ft-lb
SLD 1450 Series - Inch (Imperial)
SLD 1450 Series - Inch (Imperial)
(34)
- High torque
- Exceptional concentricity
- Self-centering
- Axial hub position fixed during clamping
- Metric shafts 18 mm to 200mm
- Inch shafts 3/4 to 4 inch
- Larger sizes on request
- 203 - 34,151 ft-lb
SLD 1450 Series - Metric
SLD 1450 Series - Metric
(36)
- High torque
- Exceptional concentricity
- Self-centering
- Axial hub position fixed during clamping
- Metric shafts 18 mm to 200mm
- Inch shafts 3/4 to 4 inch
- Larger sizes on request
- 203 - 34,151 ft-lb
SLD 2600 Series - Inch (Imperial)
SLD 2600 Series - Inch (Imperial)
(50)
- Heavy duty
- Very high torque
- Self-centering
- Exceptional concentricity
- Metric shafts 25 mm to 240 mm
- Inch shafts 1 to 6-1/2 inch
- Larger sizes on request
- 532 - 155,461 ft-lb
SLD 2600 Series - Metric
SLD 2600 Series - Metric
(30)
- Heavy duty
- Very high torque
- Self-centering
- Exceptional concentricity
- Metric shafts 25 mm to 240 mm
- Inch shafts 1 to 6-1/2 inch
- Larger sizes on request
- 532 - 155,461 ft-lb
SLD 1900 Series - Inch (Imperial)
SLD 1900 Series - Inch (Imperial)
(24)
- Medium torque
- Allows smaller diameter hubs
- Exceptional concentricity
- Self-centering
- Axial hub position fixed during clamping
- Metric shafts 6 mm to 130 mm
- Inch shafts 3/4 to 2-15/16 inch
- Larger sizes on request
- 10 - 18,618 ft-lb
SLD 1900 Series - Metric
SLD 1900 Series - Metric
(39)
- Medium torque
- Allows smaller diameter hubs
- Exceptional concentricity
- Self-centering
- Axial hub position fixed during clamping
- Metric shafts 6 mm to 130 mm
- Inch shafts 3/4 to 2-15/16 inch
- Larger sizes on request
- 10 - 18,618 ft-lb
SLD 350 Series (Solid Ring) - Metric
SLD 350 Series (Solid Ring) - Metric
(44)
- Low torque
- Small radial dimensions
- Can be combined for greater torque capacity
- Metric shafts 6mm to 150mm
- Also available with cut ring
- Larger sizes on request
- 1.73 - 9,104 ft-lb
SLD 350 S Series (Split Ring) - Metric
SLD 350 S Series (Split Ring) - Metric
(44)
- Low torque
- Small radial dimensions
- Can be combined for greater torque capacity
- Metric shafts 6mm to 150mm
- Split/cut ring
- Larger sizes on request
- 1.73 - 9,104 ft-lb

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