Lovejoy Coupler, L070 X 5/8"

Lovejoy Coupler, L070 X 5/8"

The Lovejoy L070 Jaw Coupler Hub (5/8" Bore) is a precision-machined coupling hub designed for use in L070 jaw-type flexible coupling systems. Built from durable sintered iron, this hub connects shafts while working with an elastomer spider (SOX NBR rubber) to transmit torque smoothly while reducing vibration and shock loads. The jaw coupling design prevents metal-to-metal contact, allowing the elastomer insert to absorb misalignment and protect connected equipment. With a 5/8" bore and 3/16" × 3/32" keyway, this hub is commonly used in motors, pumps, gearboxes, and power transmission equipment—because a good coupling keeps machinery turning together instead of fighting each other.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: L070.625
• Brand: Lovejoy
• Product Type: Jaw coupling hub
• Coupling Size: L070
• Coupling Type: Jaw
• Hub Style: Style 1
• Material: Sintered iron
• Bore Size: 5/8 in.
• Keyway Size (W × D): 3/16 in. × 3/32 in.
• Length Through Bore: 0.750 in.
• Overall Length: 1.980 in.
• Hub Length: 1.230 in.
• Outside Diameter: 1.36 in.
• Minimum Bore Capacity: 0.250 in.
• Maximum Bore Capacity: 0.750 in.
• Dimension G: 0.480 in.
• Dimension SL: 0.380 in.
• Set Screw Thread: 1/4-20
• Number of Jaws: 2
• Coupling Element: SOX elastomer spider (NBR rubber)
• Approximate Weight: 0.22 lb

Performance Data

• Nominal Torque: 43.2 in-lb
• Maximum Speed: 14,000 RPM
• Rated HP @ 100 RPM: 0.07 HP
• Rated HP @ 1,200 RPM: 0.84 HP
• Rated HP @ 1,800 RPM: 1.23 HP
• Rated HP @ 3,600 RPM: 2.52 HP

Spider Material Characteristics (SOX NBR Rubber)

• Material: Nitrile Butadiene Rubber (Buna-N)
• Temperature Range: -40°F to 212°F
• Oil Resistance: Good resistance to oils and lubricants
• Performance: Flexible, resilient, and vibration absorbing

Features

• Fail-safe design – coupling continues functioning even if the elastomer fails
• No metal-to-metal contact between hubs
• Resistant to oil, dirt, sand, moisture, and grease
• Part of a modular system with over 850,000 bore combinations available

Ideal For

• Electric motor and pump connections
• Gearboxes, compressors, and mechanical drives
• Equipment requiring shock absorption and vibration dampening
• Power transmission systems with slight shaft misalignment
• Anyone who appreciates machinery that runs smoothly instead of rattling like a toolbox in the back of a pickup