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Lovejoy Shaft Locking Devices

Lovejoy Shaft Locking Devices
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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 uses 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.

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.

Lovejoy External Shaft Locking Device Type

Lovejoy SLD 900 External Shaft Locking Device

Lovejoy SLD 900 External SLDThe Lovejoy SLD 900 External Shaft Locking Device is a self-centering, external shaft locking device featuring exceptional concentricity. the Lovejoy SLD 900 External Shaft Locking Device is suitable and recommended for hollow shafts. The axial hub position is fixed during clamping. The Lovejoy SLD 900 External Shaft Locking Device is available in metric 14mm to 240mm (larger upon request) and 22 - 118,010 ft-lb (29 – 160000 Nm).

Lovejoy Internal Shaft Locking Device Types

Lovejoy SLD 1500 Internal Shaft Locking Device

Lovejoy SLD 1500 Internal Shaft Locking DeviceThe Lovejoy SLD 1500 Internal Shaft Locking Device is a medium high torque, internal shaft locking device which is self releasing, not self-centering. The axial hub position is fixed during clamping. The Lovejoy SLD 1500 Internal Shaft Locking Device is available in metric shafts 17mm to 400mm (larger upon request) and inch shafts 3/4 to 7-15/16 inch (larger upon request) and 170 - 565,563 ft-lb (230 – 766800 Nm).

Lovejoy SLD 1850 Internal Shaft Locking Device

Lovejoy SLD 1850 Internal Shaft Locking DeviceThe Lovejoy SLD 1850 Internal Shaft Locking Device is a high torque, internal shaft locking device featuring exceptional concentricity and is self-centering. The axial hub position can move during clamping. The Lovejoy SLD 1850 Internal Shaft Locking Device is available in metric shafts 18mm to 200mm (larger upon request) and inch shafts 3/4 to 4 inch (larger upon request) and 273 - 44,625 ft-lb (370 – 60503 Nm).

Lovejoy Lovejoy SLD 1750 Internal Shaft Locking Device

Lovejoy SLD 1750The Lovejoy Lovejoy SLD 1750 Internal Shaft Locking Device is a high torque internal shaft locking device featuring exceptional concentricity and is self- centering. The axial hub position is fixed during clamping. The Lovejoy Lovejoy SLD 1750 Internal Shaft Locking Device is available in metric shafts 18mm to 200mm (larger upon request) and inch shafts 3/4 to 4 inch (larger upon request) and 214 - 35,948 ft-lb (290 – 48738 Nm).

Lovejoy SLD 1350 Internal Shaft Locking Device

Lovejoy SLD 1350The Lovejoy SLD 1350 Internal Shaft Locking Device is a high torque, external shaft locking device featuring exceptional concentricity and is self-centering. The axial hub position can move during clamping. The Lovejoy SLD 1350 Internal Shaft Locking Device is available in metric shafts 18mm to 200mm (larger upon request) and inch shafts 3/4 to 4 inch (larger upon request) and 259 - 40,274 ft-lb (351 – 54604 Nm).

Lovejoy SLD 1450 Internal Shaft Locking Device

Lovejoy SLD 1450The Lovejoy SLD 1450 Internal Shaft Locking Device is a high torque, external shaft locking device featuring exceptional concentricity and is self-centering. The axial hub position is fixed during clamping. The Lovejoy SLD 1450 Internal Shaft Locking Device is available in metric shafts 18mm to 200mm (larger upon request) and iInch shafts 3/4 to 4 inch (larger upon request) and 203 - 34,151 ft-lb (275 – 46302 Nm).

Lovejoy SLD 2600 Internal Shaft Locking Device

Lovejoy SLD 2600The Lovejoy SLD 2600 Internal Shaft Locking Device is a heavy duty, external shaft locking device featuring very high torque and is self-centering with exceptional concentricity. The Lovejoy SLD 2600 Internal Shaft Locking Device is available in metric shafts 25mm to 240mm (larger upon request) and inch shafts 1 to 6-1/2 inch (larger upon request) and 532 - 155,461 ft-lb (721 – 210776 Nm).

Lovejoy SLD 1900 Internal Shaft Locking Device

Lovejoy SLD 1900The Lovejoy SLD 1900 Internal Shaft Locking Device is a medium torque, external shaft locking device which allows smaller diameter hubs. The Lovejoy SLD 1900 Internal Shaft Locking Device features exceptional concentricity and is self-centering. The Axial hub position is fixed during clamping. The Lovejoy SLD 1900 Internal Shaft Locking Device is available in metric shafts 6mm to 130mm (larger upon request) and inch shafts 3/4 to 2-15/16 inch (larger upon request) and 10 - 18,618 ft-lb (13 – 25242 Nm).

Lovejoy SLD 2350 Internal Shaft Locking Device

Lovejoy 2350 SLDThe Lovejoy SLD 2350 Internal Shaft Locking Device is a low torque, external shaft locking device with small radial dimensions which can be combined for greater torque capacity. The Lovejoy SLD 2350 Internal Shaft Locking Device is also available with a cut ring. The Lovejoy SLD 2350 Internal Shaft Locking Device is available in metric shafts 6mm to 150mm larger upon request) and 1.73 – 9,104 ft-lb (2.34 – 12343 Nm).