Volta Belting PU Round Belts
Round section from 63 Shore ‘D’ – 100 Shore ‘A’. FDA/USDA grades availability.
| Round Belts 1 – Sizes & Properties | ||||||||||
| RFC | RL/RLC | RLW | RO | ROS | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
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| Hardness | 76 A | 80 A | 80 A | 83 A | 83 A | |||||
| USDA/FDA | Yes | Yes | Yes | Yes | Yes | |||||
| Temp. range | -40/+50°C | -40/+55°C | -40 /+55°C | -40/+55°C | -40/+55°C | |||||
| Coeff. friction (Steel) | 0.65 | 0.55 | 0.55 | 0.55 | 0.55 | |||||
| Diameter mm (inch) | Min. pulley dia. (mm) |
Pull force (1%) kg. | Min. pulley dia. (mm) | Pull force (1%) kg. | Min. pulley dia. (mm) |
Pull force (0.5%) kg. | Min. pulley dia. (mm) | Pull force (1%) kg. | Min. pulley dia. (mm) | Pull force (0.3%) kg. |
| 2 (5/64) | – | – | 15 | 0.06 | – | – | 15 | 0.06 | – | – |
| 3 (1/8) | – | – | 20 | 0.14 | – | – | 20 | 0.14 | – | – |
| 4 (5/32) | 20 | 0.2 | 30 | 0.25 | 30 | 0.25 | 30 | 0.25 | – | – |
| 5 (3/16) | 25 | 0.3 | 35 | 0.4 | 35 | 0.45 | 34 | 0.4 | – | – |
| 6 (15/64) | – | – | 38* | 0.55* | 38 | 0.55 | – | – | – | – |
| 6.3 (1/4) | – | – | 40 | 0.6 | – | – | 38 | 0.68 | 42 | 4.5 |
| 8 (5/16) | 40 | 0.75 | 55 | 1 | 55 | 1 | 48 | 1.06 | 54 | 5 |
| 9.5 (3/8) | – | – | 65 | 1.4 | – | – | 57 | 1.54 | 64 | 9.5 |
| 10 (25/64) | – | – | – | – | 70 | 1.55 | – | – | – | – |
| 12.5 (1/2) | – | – | 85 | 2.5 | – | – | 75 | 2.72 | 86 | 11.4 |
| 14 (9/16) | – | – | – | – | – | – | 84 | 3.43 | 95 | 12.3 |
| 15 (19/32) | – | – | 100 | 3.5 | – | – | – | – | – | – |
| 16 (5/8) | – | – | – | – | – | – | 95 | 4.25 | 108 | 13.6 |
| 18 (23/32) | – | – | 120 | 5.1 | – | – | – | – | – | – |
| 19 (3/4) | – | – | – | – | – | – | 115 | 6.11 | 127 | 15 |
| 25 (1) | – | – | – | – | – | – | 150 | 10.6 | – | – |
* RLC Only
| PU Round Belts 2 – Sizes & Properties | ||||||||||
| RLB | RPZ | RPZS | RPN/RPN-NT* | RPS | ||||||
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| Hardness | 80 A | 88 A | 88 A | 88 A | 88 A | |||||
| USDA/FDA | Yes | No | No | No | No | |||||
| Temp. range | -40 /+55°C | -20 /+50°C | -20 /+50°C | -30 /+80°C | -30 /+80°C | |||||
| Coef. friction (Steel) | 0.55 | 0.5 | 0.5 | 0.38 | 0.4 | |||||
| Diameter mm (inch) | Min. pulley dia. (mm) | Pull force (1%) kg. | Min. pulley dia. (mm) | Pull force (1%) kg. | Min. pulley dia. (mm) | Pull force (1%) kg. | Min. pulley dia. (mm) | Pull force (1%) kg. | Min. pulley dia. (mm) | Pull force (1%) kg. |
| 2 (5/64) | – | – | – | – | – | – | 19 | 0.13 | – | – |
| 3 (1/8) | 20 | 0.14 | – | – | – | – | 29 | 0.31 | – | – |
| 4 (5/32) | 30 | 0.25 | – | – | – | – | 38 | 0.54 | – | – |
| 5 (3/16) | 35 | 0.40 | 45 | 0.8 | – | – | 48 | 0.85 | 50 | 11 |
| 6 (15/64) | – | – | 54 | 1.16 | – | – | 57 | 1.22 | 60 | 16 |
| 6.3 (1/4) | 40 | 0.60 | – | – | – | – | – | – | – | – |
| 7 (9/32) | – | – | – | – | – | – | 67 | 1.67 | 70 | 18 |
| 8 (5/16) | 55 | 1 | 72 | 2.05 | – | – | 76 | 2.18 | 80 | 19 |
| 9 (23/64) | – | – | – | – | – | – | 86 | 2.75 | 90 | 21 |
| 9.5 (3/8) | 65 | 1.4 | – | – | – | – | – | – | – | – |
| 10 (25/64) | 70 | 1.55 | 89 | 3.2 | 95 | 19.5 | 95 | 3.4 | 100 | 22 |
| 12 (15/32) | – | – | 108 | 4.65 | 112 | 23 | 114 | 4.9 | 120 | 26 |
| 12.5 (1/2) | 85 | 2.5 | – | – | – | – | – | – | – | – |
| 14 (9/16) | – | – | – | – | – | – | – | – | – | – |
| 15 (5/8) | 100 | 3.5 | 135 | 7.25 | 135 | 24 | 143 | 7.65 | 150 | 27 |
| 18 (45/64) | – | – | – | – | – | – | 171 | 11 | 180 | 37 |
| 19 (3/4) | – | – | – | – | – | – | – | – | – | – |
| 20 (25/32) | – | – | – | – | – | – | 190 | 13.6 | – | – |
| 25 (1) | – | – | – | – | – | – | – | – | – | – |
* RPN-NT is a smooth finish Non-Textured
| PU Round Belts 3 – Sizes & Properties | ||||||||
| RM | RMW | RCW | RH | |||||
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| Hardness | 90 A | 95 A | 63 D | 100 A | ||||
| Temp. range | -30 /+60 °C | -30 /+60 °C | -20 /+75 °C | -20 /+75 °C | ||||
| Coef. friction (Steel) | 0.45 | 0.36 | 0.27 | 0.28 | ||||
| Diameter mm (inch) | Min. pulley dia. (mm) | Pull force (1%) kg.) | Min. pulley dia. (mm) | Pull force (0.5%) kg. | Min. pulley dia. (mm) | Pull force (0.5%) kg. | Min. pulley dia. (mm) | Pull force (1%) kg.) |
| 2 (5/64) | 20 | 0.26 | – | – | – | – | 40 | 0.6 |
| 3 (1/8) | 30 | 0.6 | – | – | – | – | 60 | 1.4 |
| 4 (5/32) | 40 | 1 | – | – | – | – | 80 | 2.5 |
| 5 (3/16) | 50 | 1.6 | – | – | – | – | 100 | 3.9 |
| 6.3 (1/4) | 60 | 2.6 | 75 | 10 | 100 | 13 | 125 | 6.2 |
| 8 (5/16) | 80 | 4.2 | 95 | 17 | – | – | 160 | 10 |
| 9.5 (3/8) | 95 | 5.9 | 110 | 18 | 150 | 20 | 190 | 14 |
| 12.5 (1/2) | 125 | 10.1 | 150 | 28 | 200 | 21 | 250 | 16 |
| 15 (5/8) | 150 | 14.6 | 175 | 30 | – | – | 300 | 23 |
| 18 (45/64) | 180 | 21 | 210 | 32 | – | – | 360 | 34 |
| 20 (25/32) | 200 | 25.9 | – | – | – | – | – | – |
| Food Approved Soft Material | |||||
| Products | Colour | Hardness | Temperature range | CoF(Steel) | FDA |
|---|---|---|---|---|---|
| Round Profiles | TB Transparent | 72 A | -40°C to +40°C | 0.85 | Yes |
| “V” Profiles | |||||
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