Lovejoy Coupler, L110 X 1-1/4"

Lovejoy Coupler, L110 X 1-1/4"

The L1101.250 Lovejoy Jaw Coupling Hub is a durable, no-lube power transmission hub designed for light, medium, and heavy-duty motor and engine-driven applications. Used with a second L110 hub and a Lovejoy spider, it delivers smooth torque transfer with vibration damping, no metal-to-metal contact, and fail-safe operation if the elastomeric member fails.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: L1101.250
• Description: L110-HUB-1-1/4-5/16X5/32KW
• Brand: Lovejoy
• Coupling Type: Jaw
• Hub Style: 1
• Coupling Size: L110
• Material: Sintered Iron
• Color / Finish: Metallic
• # of Jaws: 3
• Elastomeric Member (Spider): SOX (NBR) Rubber (spider sold separately)
• Bore Size: 1-1/4 in (1.250 in)
• Keyway Size (W x D): 5/16 x 5/32 in
• Length Thru Bore: 1.68 in (42.67 mm)
• Hub Length: 2.56 in (65.02 mm)
• Overall Length (Complete Coupling): 4.220 in (107.19 mm)
• Outside Diameter (Complete Coupling): 3.32 in (84.33 mm)
• Min Bore (ID1/ID2): 0.625 in (16.00 mm)
• Max Bore (ID1/ID2): 1.625 in (41 mm)
• Dimension G: 0.88 in (22.35 mm)
• Dimension SL: 0.750 in (19.05 mm)
• Dimension T: 3/8-16
• Cubic Inches: 28.21734 in³
• Weight (Hub): 2.68 lb
• Weight (Complete Coupling w/ Max Bores): 6.60 lb
• Weight (Complete Coupling w/ Min Bores): 5.30 lb
• Performance (Coupling):
  • Nominal Torque: 792 in·lb
  • Max Speed: 5000 rpm
  • Rated HP @ 100 rpm: 1.26 hp
  • Rated HP @ 1,200 rpm: 15.12 hp
  • Rated HP @ 1,800 rpm: 23.00 hp
  • Rated HP @ 3,600 rpm: 45.36 hp
• Spider Material Notes (NBR / Buna-N): Oil-resistant elastomer; operating range -40° to 212°F (-40° to 100°C)

Ideal For

• Building an L Type jaw coupling assembly (requires two L110 hubs + one spider)
• Motor and engine-driven power transmission where no lubrication is preferred
• Applications needing vibration damping with no metal-to-metal contact
• Dirty or wet environments where resistance to oil, dirt, sand, moisture, and grease matters
• Setups that benefit from fail-safe performance even if the elastomer spider wears or fails