Steel Hubs for Split Taper Bushings
Steel Hubs for Split Taper Bushings
Split taper bushings are mechanical components used for mounting pulleys, sprockets, and other devices onto shafts. Unlike solid bushings, split taper bushings have a split design, allowing for easy installation and removal. They feature a tapered surface that matches the taper on the hub of the mounted component.
Steel Hubs for Split Taper Bushings – Dimensions Table
| Part No. | Bushing Series | Outside Diameter (O.D.) | A | B | C | K | V | W | X | Taper Angle (a) | Bolt Circle (d) | Bolt Qty | Bolt Size | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HG1 | G | 2 in | .174 | 1.168 | 1.875 | – | 1 9/16 | – | 5/8 | – | 5/8 | 2 | 1/4–20 | 0.4 lbs |
| HH1 | H | 2 1/2 in | .174 | 1.621 | 2.375 | – | 2 | – | 7/8 | – | 7/8 | 2 | 1/4–20 | 0.6 lbs |
| … | … | … | … | … | … | … | … | … | … | … | … | … | … | … |
| HW1 | W1 | 12 1/2 in | 2.963 | 8.500 | 12.250 | 4 9/16 | 10 | 1 1/4 | 6 3/8 | 22.5° | 1 3/4 | 4 | 3/4–10 | 130.0 lbs |
| Part No. |
For Bushing |
O.D. (in.) | A (in.) | B (in.) | C (in.) | K (in.) | V (in.) | W (in.) | X (in.) | a (°) | d (in.) | No. | Size | Wt. (lbs) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HG1 | G | 2 | .174 | 1.168 | 1.875 | – | 1 9/16 | – | 5/8 | – | 5/8 | 2 | 1/4–20 | .4 |
| HH1 | H | 2 1/2 | .174 | 1.621 | 2.375 | – | 2 | – | 7/8 | – | 7/8 | 2 | 1/4–20 | .6 |
| HCH1 | H | 2 1/2 | .625 | 1.621 | 2.375 | – | 2 | – | 7/8 | – | 7/8 | 2 | 1/4–20 | .7 |
| HP1 | P1 | 3 | .292 | 1.9375 | 2.875 | 1 3/32 | 2 7/16 | 1 3/8 | 1 5/16 | 60 | 5/8 | 3 | 5/16–18 | 1.4 |
| HCP1 | P1 | 3 | 1.000 | 1.9375 | 2.875 | 1 3/32 | 2 7/16 | 1 3/8 | 1 5/16 | 60 | 5/8 | 3 | 5/16–18 | 1.1 |
| HP2 | P2 | 3 | 1.100 | 1.9375 | 2.875 | 1 3/32 | 2 7/16 | 1 3/8 | 2 5/16 | 60 | 5/8 | 3 | 5/16–18 | 2.5 |
| HB1 | B | 3 7/8 | .292 | 2.623 | 3.750 | 1 7/16 | 3 1/8 | 1 1/2 | 1 5/16 | 60 | 13/16 | 3 | 5/16–18 | 2.3 |
HCB1 |
B | 4 | .709 | 2.623 | 4.375 | 1 7/16 | 3 1/8 | 1 1/2 | 1 3/4 | 60 | 13/16 | 3 | 5/16–18 | 4.7 |
| HQ1 | Q1 | 4 1/2 | .709 | 2.875 | 4.375 | 1 9/16 | 3 3/8 | 1 1/2 | 1 3/4 | 60 | 7/8 | 3 | 3/8–16 | 4.4 |
| HCQ1 | Q1 | 4 1/2 | 1.250 | 2.875 | 4.375 | 1 9/16 | 3 3/8 | 1 1/2 | 1 3/4 | 60 | 7/8 | 3 | 3/8–16 | 4.4 |
| HQ2 | Q2 | 4 1/2 | 1.606 | 2.875 | 4.375 | 1 9/16 | 3 3/8 | 1 1/2 | 2 3/4 | 60 | 7/8 | 3 | 3/8–16 | 6.9 |
| HR1 | R1 | 5 3/4 | .709 | 4.000 | 5.625 | 2 3/16 | 4 5/8 | 3/4 | 2 | 60 | 1 1/8 | 3 | 3/8–16 | 7.3 |
| HR2 | R2 | 5 3/4 | 1.606 | 4.000 | 5.625 | 2 3/16 | 4 5/8 | 3/4 | 4 | 60 | 1 1/8 | 3 | 3/8–16 | 15.4 |
| HS1 | S1 | 6 3/4 | .946 | 4.625 | 6.500 | 2 9/16 | 5 3/8 | 3/4 | 3 5/16 | 60 | 1 5/8 | 3 | 1/2–13 | 17.3 |
| HS2 | S2 | 6 3/4 | 2.963 | 4.625 | 6.500 | 2 9/16 | 5 3/8 | 3/4 | 5 11/16 | 60 | 1 5/8 | 3 | 1/2–13 | 30.4 |
| HU0 | U0 | 8 1/2 | 2.000 | 6.000 | 8.250 | 3 1/4 | 7 | 1 1/4 | 3 3/4 | 60 | 2 | 3 | 5/8–11 | 32.0 |
| HU1 | U1 | 8 1/2 | 2.963 | 6.000 | 8.250 | 3 1/4 | 7 | 1 1/4 | 5 5/8 | 60 | 1 3/4 | 3 | 5/8–11 | 44.6 |
| HU2 | U2 | 8 1/2 | 6.016 | 6.000 | 8.250 | 3 1/4 | 7 | 1 1/4 | 8 5/8 | 60 | 1 3/4 | 3 | 5/8–11 | 69.0 |
| HW1 | W1 | 12 1/2 | 2.963 | 8.500 | 12.250 | 4 9/16 | 10 | 1 1/4 | 6 3/8 | 22 1/2 | 1 3/4 | 4 | 3/4–10 | 130.0 |
Specification Field Descriptions (SEO-Optimized)
Part No.
Each part number identifies a specific hub geometry matched to a Split Taper Bushing series. This reference allows fast selection during replacement or new equipment assembly.
Bushing Series
The bushing series defines the taper profile and mounting compatibility. Selecting the correct series ensures proper clamping force and reliable shaft engagement.
Outside Diameter (O.D.)
Outside diameter represents the overall hub size after installation. Designers use this value to confirm clearance within guards, housings, or adjacent components.
Dimension A
Dimension A controls hub face thickness. This dimension influences axial positioning and helps maintain correct alignment between driven components.
Dimension B
Dimension B defines the primary hub body length. It contributes to load distribution along the shaft and improves rotational stability.
Dimension C
Dimension C represents the total hub length. This value supports accurate spacing in multi-component drive assemblies.
Dimension K
Dimension K relates to the bushing seating depth inside the hub. Proper seating ensures full taper contact and consistent torque transmission.
Dimension V
Dimension V specifies the internal taper engagement length. A longer engagement improves grip strength and reduces localized stress.
Dimension W
Dimension W measures hub flange thickness. This dimension supports structural rigidity during high-load operation.
Dimension X
Dimension X indicates bolt projection or clearance depth. Installers use this value to verify tool access and bolt travel during mounting.
Taper Angle (a)
The taper angle defines how the hub converts bolt torque into radial clamping force. Optimized taper geometry improves holding strength without shaft damage.
Bolt Circle Diameter (d)
Bolt circle diameter determines fastener positioning around the hub. Correct spacing ensures even clamping and balanced rotation.
Bolt Quantity
Bolt quantity specifies the number of mounting fasteners required. More fasteners typically support higher torque capacity and load stability.
Bolt Size
Bolt size identifies the required thread specification. Using the correct bolt size maintains clamping reliability and prevents thread failure.
Weight
Hub weight helps engineers evaluate rotational inertia and handling requirements during installation and transport.
Why These Specifications Matter
These dimensional and mechanical specifications allow engineers, buyers, and maintenance teams to select the correct steel hub with confidence. Accurate sizing ensures proper fit with Split Taper Bushings, stable torque transfer, and long-term operational reliability across industrial power transmission systems.
This taper facilitates a tight and secure fit when the bushing is tightened onto the shaft. Split bushings are commonly used in power transmission applications, providing a convenient and efficient means of connecting rotating elements to shafts while simplifying assembly and disassembly processes.
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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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