Lovejoy Coupler, L090 X 7/16"

Lovejoy Coupler, L090 X 7/16"

The L090.437 Lovejoy Coupler Hub is a jaw-style coupling hub designed for dependable torque transmission with vibration dampening performance. Built from sintered iron and sized for a 7/16" bore with 1/8" x 1/16" keyway, this L090 hub pairs with a nitrile (Buna-N) elastomer spider to provide smooth, fail-safe operation—because power transfer should be steady, not shaky.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: L090.437
• Description: L090-HUB-7/16-1/8X1/16KW
• Coupling Type: Jaw
• Hub Style: Style 1
• Material: Sintered Iron
• Color: Metallic
• Number of Jaws: 3
• Elastomer Compatibility: SOX (NBR / Buna-N) Rubber Spider
• Bore Size: 7/16 in
• Keyway Size (W x D): 1/8 x 1/16 in
• Coupling Size: L090
• Length Thru Bore: 0.82 in (20.83 mm)
• Hub Length: 1.32 in (33.53 mm)
• Overall Length (Complete Coupling): 2.150 in (54.61 mm)
• Outside Diameter: 2.11 in (53.59 mm)
• Min. Bore: 0.250 in (6 mm)
• Max. Bore: 1.000 in (25.00 mm)
• Nominal Torque: 144 in·lb
• Max Speed: 9,000 RPM
• Rated HP @ 100 RPM: 0.23 HP
• Rated HP @ 1,200 RPM: 2.76 HP
• Rated HP @ 1,800 RPM: 4.11 HP
• Rated HP @ 3,600 RPM: 8.28 HP
• Weight (Hub): 0.64 lb
• Weight (Complete Coupling, Min Bore): 1.20 lb
• Weight (Complete Coupling, Max Bore): 1.50 lb
• Thread (Dimension T): 1/4-20
• Cubic Inches: 5.87677 in³

Spider Performance (Buna-N / NBR)

• Temperature Range: -40°F to 212°F (-40°C to 100°C)
• Oil Resistant
• Flexible with natural rubber-like resilience
• Standard elastomer option

Features

• Fail-safe design – continues to perform if elastomer fails
• No metal-to-metal contact
• Resistant to oil, dirt, sand, moisture, and grease
• Part of a system offering 850,000+ bore combinations

Ideal For

• Power transmission applications requiring vibration dampening
• Equipment operating up to 9,000 RPM
• Systems requiring 144 in·lb nominal torque capacity
• Agricultural, industrial, and mechanical drive setups
• Installations where oil resistance and fail-safe performance are important