Lovejoy Coupler, L090 X 5/8"

The L090.625 Lovejoy Coupler is an L090 jaw coupling hub with a 5/8" bore and keyway, designed to pair with a matching L090 hub and a SOX (NBR) rubber spider to transmit torque while damping vibration. With a fail-safe jaw design (continues to function if the elastomer fails) and resistance to oil, dirt, moisture, and grease, it’s a dependable choice for pumps, motors, and general power transmission—quietly doing its job so the rest of the machine can pretend it’s not under load.

Country of Origin
Varies by production batch

Key Features / Specifications

• Part Number / Description: L090-HUB-5/8-3/16X3/32KW
• Brand: Lovejoy
• Coupling Size: L090
• Coupling Type: Jaw
• Hub Style: Style 1
• Material: Sintered iron
• Elastomeric Member: SOX (NBR) rubber spider
• # of Jaws: 3
• Bore Size: 5/8 in
• Keyway Size (W × D): 3/16 × 3/32 in
• Length Thru Bore: 0.82 in (20.83 mm)
• Hub Length: 1.32 in (33.53 mm)
• Overall Length: 2.150 in (54.61 mm)
• Outside Diameter: 2.11 in (53.59 mm)
• Min Bore Range (ID1/ID2): 0.250 in (6 mm)
• Max Bore Range (ID1/ID2): 1.000 in (25.00 mm)
• Dimension G: 0.52 in (13.21 mm)
• Dimension SL: 0.440 in (11.18 mm)
• Dimension T: 1/4-20
• Cubic Inches: 5.87677 in³
• Nominal Torque: 144 in·lb
• Max Speed: 9000 rpm
• Rated HP: 0.23 hp @ 100 rpm, 2.76 hp @ 1200 rpm, 4.11 hp @ 1800 rpm, 8.28 hp @ 3600 rpm
• Weight: 0.61 lb
• Complete Coupling Weight: 1.20 lb (min bores) / 1.50 lb (max bores)

Ideal For

• Coupling a motor to a pump, gearbox, or drive where an L090 jaw coupling is specified
• Applications needing vibration damping and shock absorption using an NBR (SOX) spider
• Environments with exposure to oil, dirt, sand, moisture, or grease
• Users who want no metal-to-metal contact and a fail-safe design for extra peace of mind