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Cast iron jaw coupling hub L225 with 60 mm bore and keyway

Lovejoy

Lovejoy L225 Jaw Coupling Hub 60 mm Cast Iron

SKU CH-SA8S-MMHKE

A cast-iron jaw coupling hub with a 60 mm bore and 18 mm keyway, rated to 4,600 RPM and compatible with L190 series centre elements

  • 60 mm bore fits 60 mm shafts directly
  • Cast iron hub rated to 4,600 RPM for heavy-duty drives
  • Three spider choices deliver 3.7, 5.6 or 9.9 hp at 100 RPM
  • 18 mm keyway with 4.4 mm depth locks torque securely
  • 127 mm OD and 137 mm length suit compact installations

Application fit

The Lovejoy L225 jaw coupling hub connects two shafts in metric power-transmission systems. It suits maintenance engineers and OEM assemblers who need a 60 mm bore with an 18 mm keyway on cast-iron hubs rated for continuous industrial duty.

Thermals noise power

The hub itself generates no heat or noise; thermal and acoustic performance depends on the chosen spider element and alignment quality. At 4,600 RPM the cast-iron hub handles up to 9.9 hp at 100 RPM with a Hytrel spider, 5.6 hp with urethane, or 3.7 hp with Buna-N.

Build integration

The straight-jaw profile accepts L190H, L190N or L190U centre elements, letting the builder select stiffness and damping without changing hubs. A 4.4 mm keyway depth and set-screw locking secure the hub to the shaft, while the 127 mm outside diameter and 137 mm overall length define the envelope the surrounding guards and brackets must clear.

How it compares

Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.

Price $100.99
Pricier than about 82% of the 693 comparable items (median $35.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the L225 hub on a 60 mm shaft and what step is often missed?

Slide the hub onto the shaft, align the 18 mm keyway with the shaft key, then tighten the set screw over the key — the step often missed is confirming the 4.4 mm keyway depth is fully engaged before locking.

Which spider will need replacement first and how do I identify it?

The Buna-N spider (part L190N) wears fastest; inspect the jaws for rounded teeth or vibration — replace with the same L190N, L190U (urethane) or L190H (Hytrel) element when play appears.

At 4 600 RPM what limit appears first during continuous operation?

The 4 600 RPM maximum speed rating is the first limit; sustained operation at or above this speed risks hub fatigue regardless of the 3.7 hp (Buna-N), 5.6 hp (urethane) or 9.9 hp (Hytrel) torque capacity at 100 RPM.

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