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Cylindrical steel QD bushing with split flange, three cap screws, 1 1/2 in bore

Tb Wood'S

Tb Wood'S SD112 QD Bushing 1 1/2 in Bore 1.813 in Length

SKU CH-A915-D4SBT

Quick-detach steel bushing with 1 1/2 in bore, 1.813 in length and 2.69 in bolt circle for keyed shafts

  • Quick-detachable design speeds installation
  • 1 1/2 in bore fits standard keyed shafts
  • 813 in overall length with 1.375 in body
  • SAE Grade 5 steel withstands high torque
  • 69 in bolt circle accepts three cap screws

SD QD Bushing for 1 1/2 in Bore

This SD series quick-detachable bushing fits a 1 1/2 inch bore and measures 1.813 inches in length. It is made from steel to SAE Grade 5 and includes three cap screws for installation. The split flange design allows straightforward mounting on keyed shafts in power transmission assemblies.

For keyed shafts needing SD series

This bushing suits maintenance teams and machine builders who need a quick-detachable SD series hub for a 1 1/2 inch keyed shaft with a 3/16 by 3/8 inch keyway. It is not for applications that require a different bore diameter, a different bushing series, or a non-keyed shaft connection.

1.813 in length with 2.69 in bolt circle

The bushing length is 1.813 inches and the bolt circle diameter is 2.69 inches, so verify that the mating component matches these dimensions. The three included cap screws are 1/4-20 by 1-7/8 inches and the flange width is 7/16 inch.

How it compares

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

Price $23.99
Cheaper than about 60% of the 693 comparable items (median $35.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does the SD112 QD bushing require a shaft with a 3/16 in keyway height and 3/8 in keyway width?

Yes, it is designed for a keyed shaft with a 3/16 in keyway height and a 3/8 in keyway width to transmit torque properly.

Will the 2.69 in bolt circle diameter match the mounting pattern on my existing SD series sheave?

The SD112 uses a 2.69 in bolt circle diameter, which is standard for SD series components, so it aligns with existing SD mounting holes.

How do I confirm the bushing is fully seated after tightening the three cap screws?

When the three SAE Grade 5 cap screws are torqued evenly, the split flange closes to a 7/16 in width and the bushing grips the shaft along its 1.375 in taper length.

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