3V Series Cast Iron Three-Groove Sheaves with Split Taper Bushings
3V series three-groove taper bushed sheaves are manufactured for 3V, 3VX, banded 3V, and banded 3VX belts. They range from 2.65" to 33.50" in diameter. Depending on the sheave size, they are made to use G, H, P1, Q1, or R1 split-taper bushings, which we also stock. Most of our three-groove 3V split taper sheaves 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.

Size | Bushing Type | Pitch Diameter | Outside Diameter | Type | (O.L.) | (L) | (P) | (C) | (H) | (F) | (G) | (X) | (E) | Sheave Weight (LBS) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3G3V26 | G | 2.60" | 2.65" | G-2 | 2 | 1 | 5/16 | 13/16 | 2 | 1 1/2 | 7/16 | 1 3/8 | 3/16 | 1.1 |
| 3G3V28 | G | 2.75" | 2.80" | G-2 | 2 | 1 | 5/16 | 13/16 | 2 | 1 1/2 | 7/16 | 1 3/8 | 3/16 | 1.6 |
| 3G3V30 | G | 2.95" | 3.00" | G-2 | 2 | 1 | 5/16 | 13/16 | 2 | 1 1/2 | 7/16 | 1 3/8 | 3/16 | 1.8 |
| 3H3V31 | H | 3.10" | 3.15" | H-2 | 2 | 1 1/4 | 5/16 | 9/16 | 2 1/2 | 1 1/2 | 7/16 | 1 3/8 | 3/16 | 1.4 |
| 3H3V33 | H | 3.30" | 3.35" | H-2 | 2 | 1 1/4 | 5/16 | 9/16 | 2 1/2 | 1 1/2 | 7/16 | 1 3/8 | 3/16 | 1.8 |
| 3P3V36 | P1 | 3.60" | 3.65" | 5 | 2 3/8 | 1 15/16 | 5/8 | 3/16 | 3 | 1 1/2 | - | 1 5/16 | 1/4 | 2.5 |
| 3P3V41 | P1 | 4.07" | 4.12" | 5 | 2 3/8 | 1 15/16 | 5/8 | 3/16 | 3 | 1 1/2 | - | 1 5/16 | 1/4 | 3.0 |
| 3P3V45 | P1 | 4.45" | 4.50" | 13 | 2 3/16 | 1 15/16 | 7/16 | 0 | 3 | 1 1/2 | 5/8 | 1 5/16 | 1/4 | 3.9 |
| 3P3V47 | P1 | 4.70" | 4.75" | 13 | 2 3/16 | 1 15/16 | 7/16 | 0 | 3 | 1 1/2 | 5/8 | 1 5/16 | 1/4 | 4.4 |
| 3P3V50 | P1 | 4.95" | 5.00" | 13 | 2 3/16 | 1 15/16 | 7/16 | 0 | 3 | 1 1/2 | 5/8 | 1 5/16 | 1/4 | 4.9 |
| 3P3V53 | P1 | 5.25" | 5.30" | 13 | 2 3/16 | 1 15/16 | 7/16 | 0 | 3 | 1 1/2 | 5/8 | 1 5/16 | 1/4 | 5.9 |
| 3P3V56 | P1 | 5.55" | 5.60" | 13 | 2 3/16 | 1 15/16 | 7/16 | 0 | 3 | 1 1/2 | 5/8 | 1 5/16 | 1/4 | 7.5 |
| 3P3V60 | P1 | 5.95" | 6.00" | 13 | 2 3/16 | 1 15/16 | 7/16 | 0 | 3 | 1 1/2 | 5/8 | 1 5/16 | 1/4 | 8.0 |
| 3Q3V65 | Q1 | 6.45" | 6.50" | 16 | 2 25/32 | 2 1/2 | 7/8 | 1/8 | 4 1/8 | 1 1/2 | 3/4 | 1 3/4 | 9/32 | 9.9 |
| 3Q3V69 | Q1 | 6.85" | 6.90" | 16 | 2 25/32 | 2 1/2 | 7/8 | 1/8 | 4 1/8 | 1 1/2 | 3/4 | 1 3/4 | 9/32 | 11.3 |
| 3Q3V80 | Q1 | 7.95" | 8.00" | 16 | 2 25/32 | 2 1/2 | 7/8 | 1/8 | 4 1/8 | 1 1/2 | 3/4 | 1 3/4 | 9/32 | 11.9 |
| 3Q3V106 | Q1 | 10.55" | 10.60" | 16 | 2 25/32 | 2 1/2 | 7/8 | 1/8 | 4 1/8 | 1 1/2 | 3/4 | 1 3/4 | 9/32 | 15.1 |
| 3Q3V140 | Q1 | 13.95" | 14.00" | 16 | 2 25/32 | 2 1/2 | 7/8 | 1/8 | 4 1/8 | 1 1/2 | 3/4 | 1 3/4 | 9/32 | 24.5 |
| 3R3V190 | R1 | 18.95" | 19.00" | 16 | 3 5/32 | 2 7/8 | 1 1/8 | 1/4 | 5 3/8 | 1 1/2 | 7/8 | 2 | 9/32 | 35.1 |
| 3R3V250 | R1 | 24.95" | 25.00" | 16 | 3 5/32 | 2 7/8 | 1 1/8 | 1/4 | 5 3/8 | 1 1/2 | 7/8 | 2 | 9/32 | 55.0 |
| 3R3V335 | R1 | 33.45" | 33.50" | 16 | 3 5/32 | 2 7/8 | 1 1/8 | 1/4 | 5 3/8 | 1 1/2 | 7/8 | 2 | 9/32 | 80.8 |
(2) 3V-Series Banded V-Belts3V-series v-belts are a part of the "classic" lineup of v-belts because they are one of the oldest style belts used and one of the most common. Our belts are manufactured following ARPM standards and offer superior strength, durability, and performance. 3V-series v-belts have a 0.38" top-width per belt (band/ rib).(3) 3VX Cogged V-Belts3VX cogged v-belts are designated by having a 0.38" top-width and 0.31" thickness. Our cogged 3VX v-belts are manufactured with raw-edge sidewalls to eliminate slippage and increase efficacy, saving operation costs. They are also manufactured by ARPM standards and are oil and heat-resistant. 3VX belts are constructed from a high-quality chloroprene compound with high-strength polyester chords and have a top fabric built from a cotton polyester blend. Besides the performance, durability, and energy savings benefits, our cogged v-belts will work with existing stand pulleys/ sheaves. Please contact us to get a quote on 3VX cogged v-belts or pulleys, and we will be happy to assist you.
(4) 3VX Banded Cogged V-BeltsAll of our v-belts are manufactured by ARPM specifications and offer superior performance and durability. Due to their design, banded 3VX cogged v-belts run smoother, more relaxed, and typically outlast a standard banded C v-belt. They also offer a higher efficiency than ordinary banded v-belts, which means fewer energy costs.![]() | ![]() |
Bushing Type | (D) | (L) | (A) | (B) | (G) | (B.C) | (W) | Type-1 Bore Range | Type-2 Bore Range | Cap Screw No. | Cap Screw Size | Avg. Weight (LBS) | Wrench Torque (In/ LBS) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| G | 2" | 1.00" | 0.25" | 1.172" | 0.19" | 1.56" | -- | 0.375" - 0.938" | 1" | 2 | 0.25" X 0.625" | 0.5 | 95 |
| H | 2.5" | 1.25" | 0.25" | 1.625" | 0.19" | 2" | -- | 0.375" - 1.375" | 1.438" - 1.5" | 2 | 0.25" X 0.75" | 0.8 | 95 |
| P1 | 3" | 1.94" | 0.41" | 1.938" | 0.22" | 2.44" | 0.375" | 0.5" - 1.438" | 1.5" - 1.75" | 3 | 0.313" X 1" | 1.3 | 192 |
| Q1 | 4.12" | 2.50" | 0.53" | 2.875" | 0.22" | 3.38" | 0.500" | 0.75" - 2.063" | 2.125" - 2.688" | 3 | 0.375" X 1.25" | 3.5 | 348 |
| R1 | 5.38" | 2.88" | 0.62" | 4" | 0.25" | 4.62" | 0.750" | 1.125" - 2.813" | 2.875" - 3.75 | 3 | 0.375" X 1.75" | 7.5 | 348 |





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Luotuo Industrial Area, Zhenhai District, Ningbo City, China
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