JA Type Tapered QD Style Bushing

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Description

An AMEC JA type bushing (also known as a JA Series QD Bushing) is a compact, precision-machined Quick Detachable taper bushing. The split-flange design creates a strong, all-around gripping force on the drive shaft when tightened, mimicking a shrink-fit connection.

Key Dimensions & Technical Specifications

Standard Taper: 3/4-inch per foot on the diameter.
Flange Type: Fully split through the barrel and flange.
Overall Diameter (Flange): 2.000 inches.
Overall Length: 1.000 inch.
Large Barrel Diameter: 1.375 inches.
Flange Thickness: 5/16 inch (0.3125").
Bolt Circle Diameter: 1.656 inches.
Fasteners Required: Uses 3 cap screws (typically size #10-24 x 1" long).
Max Torque Capacity: Typically rated around 1,750 in-lbs.

Features & Materials

Material options: Typically made from sintered powder steel (for high strength and wear resistance) or high-grade cast iron depending on the manufacturer.
Flexible Mounting: Supports both conventional and reverse mounting setups into the sheave, pulley, or sprocket.
Keyway: Machined with a standard keyway to prevent shaft rotation, plus a built-in set screw to prevent the key from slipping under heavy vibrations.