The SDS1.5/8 is a qd (quick disconnect) bushing for use with QD, TL or taper-lock sheaves, sprockets and pulleys. Provides a positive grip on the shaft with quick installation and removal for OEM and MRO maintenance. Specifications: - Manufacturer Part Number: SDS1.5/8 - Product Type: QD (Quick Disconnect) Bushing - Series: SDS Series - Material: Ductile Iron - Bushing Size: SDS - Bushing Type: QD Type - Bushing Flange Width: 0.436 in - Bore Diameter: 1.625 in - Bore Type: Finished Bore with Keyway and 1 Set Screw - Outer Diameter: 3.125 in - Overall Width: 1.3125 in - Overall Length: 3.125 in - Overall Height: 3.125 in - Length Through Bore: 1.311 in - Hub Diameter: 2.187 in - Hub Length: 0.875 in - Keyway Size: 3/8 x 3/16 - Keyway Type: Standard - Set Screw Size: 1/4/2020 - Cap Screw Size: 1/4-20 X 1 3/8 - Cap Screw Quantity: 3 - Cap Screw Grade: 5 - Bolt Circle Diameter: 3.3125 in - Finish/Coating: Black Phosphate - Part Weight: 1 lb Stocked and shipped fast from offroadbelts.com. Industrial-grade replacement part for OEM, MRO and maintenance buyers — order with confidence.