B Bushing With 38mm Bore

Precision-machined B Bushing with 38mm bore designed for high-torque industrial drive systems, including belt pulleys, sprockets, and synchronous drives. As a standard Quick-Disconnect (QD) bushing, it features a tapered design with a continuous split through the flange and taper, ensuring exceptional clamping force and easy installation on drive shafts.
Manufactured from high-grade steel, our 38mm QD bushings are fully interchangeable with major industry brands. They provide reliable retention, minimal maintenance, and extreme durability under demanding operating conditions in power transmission and agricultural machinery.
B Bushing 38mm Bore Dimensions & Specifications

| Bushing Type | B Series (Quick-Disconnect) |
|---|---|
| Bore Size | 38 mm |
| Overall Length (L) | 1-15/16″ |
| Flange Thickness (U) | 1/2″ |
| Set Screw Centerline (T) | 1-7/16″ |
| Large End Diameter (D) | 2.625″ |
| Small End Diameter (D) | 2.557″ |
| Bolt Circle Diameter (H) | 3-11/16″ |
| Flange Diameter (V) | 3-1/8″ |
| Dimension W | 1/2″ |
| Dimension X | 13/16″ |
| Dimension Y | 7/32″ |
| Dimension R | 1/4″ |
| Dimension S | 1/4″ |
| Cap Screw Quantity | 3 |
| Cap Screw Size | 5/16″ x 1-1/4″ |
| Average Weight | 1.8 lbs |
| Wrench Torque | 192 lbs-in |
Installation & Removal Instructions
Installation:
- Ensure the shaft, bushing cone, and hub bore are clean and free of lubricants or anti-seize compounds.
- Insert the bushing into the matching hub or sprocket.
- Align cap screws loosely into the pull-up holes to allow a slip fit onto the shaft.
- Position the unit on the shaft using the keyway, then incrementally tighten cap screws in a cross pattern to 192 lbs-in torque. Maintain a slight gap between the flange and hub.
Removal:
- Loosen and completely remove all cap screws.
- Insert cap screws into the threaded removal holes on the flange.
- Tighten the screws evenly in sequence until the bushing releases its grip on the tapered shaft.
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Bushing is a mechanical component that is essential in many different fields. In addition to being very practical, it helps reduce noise, vibration, and wear and provides anti-corrosion properties. These properties aid mechanical equipment in various ways, including making it easier to maintain and reducing its overall structure. The functionality of an enclosure depends on its purpose and environme
SF Type QD Bushings
- Bushing Type: SF
- Bore Size: 1-1/4"ć1-3/8"ć1/2"ć11/16"ć15/16"ć25mmć30mmć32mmć35mmć40mmć42mmć45mmć48mmć5/8"ć50mmć55mmć60mmć65mmć7/8"ć70mmć
- Dimension (A): 0.563"
- Dimension (B): 3.125"
- Dimension (D): 4.625"
- Dimension (E): 1.500"
- Dimension (F): 1.250"
- Dimension (G): 0.125"
- Dimension (L): 2.000"
- Bolt Circle: 3.875"
- Set Screw Size: 5/16 - 18
- Wrench Torque: 360 LBS
- Weight: 3.00 LBS


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