2TB Gripbelt Sheaves Pulley with Split Taper Bushings
2TB series pulleys are manufactured for A, AX, AA, 4L, B, BX, BB, and 5L v-belts, ranging from 3.75″ to 38.35″ in diameter. Depending on the pulley size, they are made to use with P1 taper bushings or Q1 taper bushings, which we also stock. Most of our 2TB pulleys are manufactured from a high-strength grade 35 cast iron, are phosphate-coated, and are painted for anti-corrosion. All of them are balanced at the factory for smooth machinery operation.
2TB Series 2-Groove Cast Iron Sheaves
Engineered for dual-belt drive systems, 2TB series 2-groove cast iron sheaves deliver high-efficiency power transmission across industrial and agricultural equipment. Compatible with A, AX, AA, 4L, B, BX, BB, and 5L V-belts, these 2-groove pulleys feature outside diameters ranging from 3.75″ to 38.35″. Designed for seamless integration with standard P1 or Q1 split taper bushings, 2TB sheaves provide secure shaft clamping and hassle-free installation.
Precision-cast from high-tensile Grade 35 cast iron, our 2TB sheaves withstand demanding operational loads with minimal wear. Each sheave undergoes phosphate surface treatment and protective anti-corrosion painting to ensure long service life in harsh working environments. Factory dynamic balancing ensures smooth, low-vibration performance. As a direct China manufacturer, PowerTrans provides both standard stock 2TB sheaves and custom OEM machining tailored to customer specifications.
2TB 2-Groove Sheaves Features & Benefits
- Grade 35 Cast Iron Durability: Cast from high-grade iron for higher fatigue strength and superior wear resistance compared to standard pulleys.
- Multi-Belt Compatibility: Standardized groove profiles accommodate A, B, and 5L series V-belts for versatile drive setups.
- Split Taper Bushing Design: Mounts easily with P1 or Q1 taper bushings, delivering tight concentricity and swift alignment.
- Anti-Corrosion Finish: Treated with phosphate conversion coating and durable industrial paint to resist moisture and rust.
- Factory Dynamically Balanced: Minimizes high-speed dynamic vibration to extend motor bearing and belt operating life.
- OEM & Custom Manufacturing: Direct factory production with options for custom bores, non-standard keyways, and OEM branding per drawings.
2TB Series Sheaves Specifications & Size Chart
| Size | Bushing Type | Pitch Diameter (4L/A) | Pitch Diameter (5L/B) | Outside Diameter | Type | (O.L.) | (L) | (P) | (C) | (H) | (F) | (G) | (X) | (E) | Pulley Weight (LBS) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2TB34 | P1 | 3.0″ | 3.4″ | 3.75″ | 2 | 3-1/16″ | 1-15/16″ | 1-1/16″ | 7/8″ | 3″ | 1″ | 5/8″ | 2-3/16″ | 1/4″ | 2.9 |
| 2TB36 | P1 | 3.2″ | 3.6″ | 3.95″ | 2 | 3-1/16″ | 1-15/16″ | 1-1/16″ | 7/8″ | 3″ | 1″ | 5/8″ | 2-3/16″ | 1/4″ | 3.8 |
| 2TB38 | P1 | 3.4″ | 3.8″ | 4.15″ | 5 | 2-5/8″ | 1-15/16″ | 5/8″ | 7/16″ | 3″ | 1″ | — | 1-5/16″ | 1/4″ | 3.0 |
| 2TB40 | P1 | 3.6″ | 4.0″ | 4.35″ | 5 | 2-5/8″ | 1-15/16″ | 5/8″ | 7/16″ | 3″ | 1″ | — | 1-5/16″ | 1/4″ | 3.8 |
| 2TB42 | P1 | 3.8″ | 4.2″ | 4.55″ | 5 | 2-5/8″ | 1-15/16″ | 5/8″ | 7/16″ | 3″ | 1″ | — | 1-5/16″ | 1/4″ | 3.9 |
| 2TB44 | P1 | 4.0″ | 4.4″ | 4.75″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 3.9 |
| 2TB46 | P1 | 4.2″ | 4.6″ | 4.95″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 4.5 |
| 2TB48 | P1 | 4.4″ | 4.8″ | 5.15″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 5.3 |
| 2TB50 | P1 | 4.6″ | 5.0″ | 5.35″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 5.6 |
| 2TB52 | P1 | 4.8″ | 5.2″ | 5.55″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 6.1 |
| 2TB54 | P1 | 5.0″ | 5.4″ | 5.75″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 6.5 |
| 2TB56 | P1 | 5.2″ | 5.6″ | 5.95″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 7.4 |
| 2TB58 | P1 | 5.4″ | 5.8″ | 6.15″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 8.0 |
| 2TB60 | P1 | 5.6″ | 6.0″ | 6.35″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 8.9 |
| 2TB62 | P1 | 5.8″ | 6.2″ | 6.55″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 7.6 |
| 2TB64 | P1 | 6.0″ | 6.4″ | 6.75″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 7.8 |
| 2TB66 | P1 | 6.2″ | 6.6″ | 6.95″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 8.3 |
| 2TB68 | P1 | 6.4″ | 6.8″ | 7.15″ | 13 | 2-3/16″ | 1-15/16″ | 3/16″ | 0 | 3″ | 1″ | 5/8″ | 1-5/16″ | 1/4″ | 8.8 |
| 2TB70 | Q1 | 6.6″ | 7.0″ | 7.35″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 11.1 |
| 2TB74 | Q1 | 7.0″ | 7.4″ | 7.75″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 11.5 |
| 2TB80 | Q1 | 7.6″ | 8.0″ | 8.35″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 12.8 |
| 2TB86 | Q1 | 8.2″ | 8.6″ | 8.95″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 16.0 |
| 2TB90 | Q1 | 8.6″ | 9.0″ | 9.35″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | ||
| 2TB94 | Q1 | 9.0″ | 9.4″ | 9.75″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 15.5 |
| 2TB110 | Q1 | 10.6″ | 11.0″ | 11.35″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 18.9 |
| 2TB124 | Q1 | 12.0″ | 12.4″ | 12.75″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 21.1 |
| 2TB136 | Q1 | 13.2″ | 13.6″ | 13.95″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 23.0 |
| 2TB154 | Q1 | 15.0″ | 15.4″ | 15.75″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 24.8 |
| 2TB160 | Q1 | 15.6″ | 16.0″ | 16.35″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 27.0 |
| 2TB184 | Q1 | 18.0″ | 18.4″ | 18.75″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 32.3 |
| 2TB200 | Q1 | 19.5″ | 20.0″ | 20.35″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 42.3 |
| 2TB250 | Q1 | 24.5″ | 25.0″ | 25.35″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 50.3 |
| 2TB300 | Q1 | 29.5″ | 30.0″ | 30.35″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 68.8 |
| 2TB380 | Q1 | 37.5″ | 38.0″ | 38.35″ | 13 | 2-25/32″ | 2-1/2″ | 3/4″ | 0 | 4-1/8″ | 1″ | 3/4″ | 1-3/4″ | 9/32″ | 95.5 |
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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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