
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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How to choose power transmissions parts and industrial products which meet our requirement
| Chains | Sprockets | Pulleys | Timing belt Pulley | V-belt Pulley |
| Sheaves | Coupings | Bush &Hub | Gear& Rack | V-Belt |
| Locking Assembly | Pulley | Gearbox | Reducer | Shaft Collar |
| Rod End Bearing | Clevis | PTO | Chain Guide | Belt Guide |
| Rubber Buffer | Chain Tensioner | PTO Drive Shafts | Universal Joints | Roller Chains |
| Conveyor Chains | V-Belts | Worm Gearbox | Helical Gear | Worm |
| Agricultural Chain | CNC Proces Parts | Casting | Stamping | |
| Powder Metallurgy | CNC Proces Parts | Casting | Stamping |
What Products Do you sell ?
We are a group of factories, give customer one stop solution of power transmission and industrial products. We are in the position to supply wide range of products, including chains, sprockets, v-belt and v-belt pulleys, timing belt and timing belt pulleys, gears, speed reducers, motors, racks, couplings, and many other parts, like locking assembly, taper bushing, Chain guide, shaft collar, torque limiter, cam clutch, universal joint, motor base and motor slide, rod end, clevis, rubber mount, etc. We make special parts according to drawings and/or samples.
How to choose a gearbox which meets our requirement?
You can refer to our catalogue to choose the gearbox or we can help to choose when you provide
the technical information of required output torque, output speed and motor parameter etc.
What information shall we give before placing a purchase order?
a) Type of the gearbox, ratio, input and output type, input flange, mounting position, and motor informationetc.
b) Housing color.
c) Purchase quantity.
d) Other special requirements.
What industries are your gearboxes being used?
Our gearboxes are widely used in the areas of textile, food processing, beverage, chemical industry,
escalator,automatic storage equipment, metallurgy, tabacco, environmental protection, logistics and etc.
What is the producing process?
Production process including raw material cutting, machine processing, grinding, accessories cleaning, assemble, cleaning, stoving, oil coating, cover pressing, testing, package.
How to control the products quality?
Combining advanced equipment and strict management, we provide high standard and quality bearings for our customers all over the world.
What is the transportation?
-If small quantity , we Suggest to send by express, such as DHL,UPS, TNT FEDEX. If large amount, by air or sea shipping.
Can we design packaging?
-Yes. Default is regular packing, and we can make customer's own packing.
Can you provide OEM service?
-Yes, we work on OEM orders. Which means size, quantity, design, packing solution, etc will depend on your requests; and your logo will be customized on our products.
Can you give me discount on Power Transmissions Parts and Industrial parts?
-Yes, of course. Pls. send me your Email, you'll get more
Q: Are You a trading company or a manufacturer?
A: We Are the factory and have our Own trading company
Q: How Can I get an offer?
A: please send US quotation information: drawings, materials, weight, quantity and requirements, we can accept PDF, ISGS, DWG, STEP file format. If you don't have the drawings, please send us the samples, we can also quote you according to your samples.
Q: What is your minimum order size?
A: it is usually 100 pieces, but a low quantity is acceptable under some special circumstances.
Q: Do you provide samples? Is it free or extra?
A: Yes, we can provide samples free of charge, but we don't pay the freight.
Q: What is the lead time for mass production?
A: honestly, it depends on the number of orders. Normally, if you don't need the tools, deposit them after 30 days or so.
Q: What if the parts don't Work?
A: we can guarantee the quality, but if it happens, please contact us immediately, take some photos, we will check the problem and solve it as soon as possible.
Q: What are your terms of payment?
A: payment is less than US $1000,100% in advance. Payment: $1000,50% wire transfer in advance, balance before shipment,Other Terms of payment are negotiable








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