1TB Split Taper Bushed Pulleys
1TB series pulleys are manufactured for A, AX, AA, 4L, B, BX, BB, and 5L v-belts and range 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. The majority of our 1TB pulleys are manufactured from a high-strength grade 35 cast iron, are phosphate-coated and painted for anti-corrosion, and all of them are balanced at the factory for smooth machinery operation.1TB Style Pulley 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1TB34 | P1 | 3.0" | 3.4" | 3.75" | 2 | 2-5/16" | 1-15/16" | 1-1/16" | 1/8" | 3" | 1" | 5/8" | 1-7/16" | 1/4" | 2.0 |
| 1TB36 | P1 | 3.2" | 3.6" | 3.95" | 2 | 2-5/16" | 1-15/16" | 1-1/16" | 1/8" | 3" | 1" | 5/8" | 1-7/16" | 1/4" | 2.3 |
| 1TB38 | P1 | 3.4" | 3.8" | 4.15" | 2 | 2-5/16" | 1-15/16" | 1-1/16" | 1/8" | 3" | 1" | 5/8" | 1-7/16" | 1/4" | 2.6 |
| 1TB40 | P1 | 3.6" | 4.0" | 4.35" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 2.1 |
| 1TB42 | P1 | 3.8" | 4.2" | 4.55" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 2.4 |
| 1TB44 | P1 | 4.0" | 4.4" | 4.75" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 2.8 |
| 1TB46 | P1 | 4.2" | 4.6" | 4.95" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 3.1 |
| 1TB48 | P1 | 4.4" | 4.8" | 5.15" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 3.5 |
| 1TB50 | P1 | 4.6" | 5.0" | 5.35" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 3.9 |
| 1TB52 | P1 | 4.8" | 5.2" | 5.55" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 4.1 |
| 1TB54 | P1 | 5.0" | 5.4" | 5.75" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 4.6 |
| 1TB56 | P1 | 5.2" | 5.6" | 5.95" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 5.1 |
| 1TB58 | P1 | 5.4" | 5.8" | 6.15" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 5.6 |
| 1TB60 | P1 | 5.6" | 6.0" | 6.35" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 6.0 |
| 1TB62 | P1 | 5.8" | 6.2" | 6.55" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 5.5 |
| 1TB64 | P1 | 6.0" | 6.4" | 6.75" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 5.8 |
| 1TB66 | P1 | 6.2" | 6.6" | 6.95" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 5.9 |
| 1TB68 | P1 | 6.4" | 6.8" | 7.15" | 10 | 2-3/16" | 1-15/16" | 5/8" | 5/16" | 3" | 1" | -- | -- | 1/4" | 6.1 |
| 1TB70 | P1 | 6.6" | 7.0" | 7.35" | 16 | 2-3/16" | 1-15/16" | 25/32" | 5/32" | 3" | 1" | 5/8" | 1-5/16" | 1/4" | 6.4 |
| 1TB74 | P1 | 7.0" | 7.4" | 7.75" | 16 | 2-3/16" | 1-15/16" | 25/32" | 5/32" | 3" | 1" | 5/8" | 1-5/16" | 1/4" | 7.3 |
| 1TB80 | P1 | 7.6" | 8.0" | 8.35" | 16 | 2-3/16" | 1-15/16" | 25/32" | 5/32" | 3" | 1" | 5/8" | 1-5/16" | 1/4" | 7.8 |
| 1TB86 | P1 | 8.2" | 8.6" | 8.95" | 16 | 2-3/16" | 1-15/16" | 25/32" | 5/32" | 3" | 1" | 5/8" | 1-5/16" | 1/4" | 8.6 |
| 1TB90 | P1 | 8.6" | 9.0" | 9.35" | 16 | 2-3/16" | 1-15/16" | 25/32" | 5/32" | 3" | 1" | 5/8" | 1-5/16" | 1/4" | 8.9 |
| 1TB94 | P1 | 9.0" | 9.4" | 9.75" | 16 | 2-3/16" | 1-15/16" | 25/32" | 5/32" | 3" | 1" | 5/8" | 1-5/16" | 1/4" | 9.1 |
| 1TB110 | P1 | 10.6" | 11.0" | 11.35" | 16 | 2-3/16" | 1-15/16" | 25/32" | 5/32" | 3" | 1" | 5/8" | 1-5/16" | 1/4" | 11.1 |
| 1TB124 | Q1 | 12.0" | 12.4" | 12.75" | 16 | 2-25/32" | 2-1/2" | 1-1/8" | 3/8" | 4-1/8" | 1" | 3/4" | 1-3/4" | 9/32" | 17.8 |
| 1TB136 | Q1 | 13.2" | 13.6" | 13.95" | 16 | 2-25/32" | 2-1/2" | 1-1/8" | 3/8" | 4-1/8" | 1" | 3/4" | 1-3/4" | 9/32" | 18.2 |
| 1TB154 | Q1 | 15.0" | 15.4" | 15.75" | 16 | 2-25/32" | 2-1/2" | 1-1/8" | 3/8" | 4-1/8" | 1" | 3/4" | 1-3/4" | 9/32" | 20.3 |
| 1TB160 | Q1 | 15.6" | 16.0" | 16.35" | 16 | 2-25/32" | 2-1/2" | 1-1/8" | 3/8" | 4-1/8" | 1" | 3/4" | 1-3/4" | 9/32" | 22.0 |
| 1TB184 | Q1 | 18.0" | 18.4" | 18.75" | 16 | 2-25/32" | 2-1/2" | 1-1/8" | 3/8" | 4-1/8" | 1" | 3/4" | 1-3/4" | 9/32" | 27.5 |
| 1TB200 | Q1 | 19.5" | 20.0" | 20.35" | 16 | 2-25/32" | 2-1/2" | 1-1/8" | 3/8" | 4-1/8" | 1" | 3/4" | 1-3/4" | 9/32" | 27.2 |
| 1TB250 | Q1 | 24.5" | 25.0" | 25.35" | 16 | 2-25/32" | 2-1/2" | 1-1/8" | 3/8" | 4-1/8" | 1" | 3/4" | 1-3/4" | 9/32" | 42.4 |
| 1TB300 | Q1 | 29.5" | 30.0" | 30.35" | 16 | 2-25/32" | 2-1/2" | 1-1/8" | 3/8" | 4-1/8" | 1" | 3/4" | 1-3/4" | 9/32" | 56.0 |
| 1TB380 | Q1 | 37.5" | 38.0" |
38.35"
|
16 | 2-25/32" | 2-1/2" | 1-1/8" | 3/8" | 4-1/8" | 1" | 3/4" | 1-3/4" | 9/32" | 78.0 |
Frequently Asked Questions
-
When clicked, section opens and shows an answer below. It can be a paragraph of few paragraphs, lists links, etc. Complete area is clickable and closes. When clicked, section opens and shows an answer below. It can be a paragraph of few paragraphs, lists links, etc. Complete area is clickable and closes.
-
All our products are subject to quality control.
Our warranty provides a guarantee against manufacturer defects.
The guarantee covers any manufacturing, design, or material defect. Please notify us within 2 months of noticing any defects.
It does not cover blows, improper use, or other issues that are not attributable to a manufacturer defects. -
Yes, we offer full and partial refunds.
Please enquire for more information about our Refund policy. -
We use all major carriers, and local courier partners. Use the shipping estimator in the cart to check your shipping rates.
-
Use this text block to discuss some commonly asked questions like shipping and returns, sizing, warranties, or product and company details.