This eight-belt SPC series is the catalogue path for buyers who already know the SPC belt section but still need to resolve diameter, shaft fit and construction details. Its listed pitch/datum diameter span is 200–1250 mm, with 24 dimensional configurations retained in the live specification table.
The SPC profile is 22 × 18 mm. In procurement language the same component may be called a V-belt pulley or sheave; keep the belt section unchanged unless the whole drive is being redesigned.
SPC eight-belt specifications
Use the complete table below to identify the exact EP- model. It retains 24 dimensional rows rather than creating a separate near-identical sales page for every diameter.
| EP Model | P (mm) | O (mm) | Type | Bush | Max Bore (mm) | E | F | J | K | L | M | N |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EP-SPC 200-08 | 200 | 209.6 | 3 | 3535 | 90 | - | 213 | 148 | 62 | 89 | 62 | - |
| EP-SPC 212-08 | 212 | 221.6 | 3 | 3535 | 90 | - | 213 | 160 | 62 | 89 | 62 | - |
| EP-SPC 224-08 | 224 | 233.6 | 3 | 3535 | 90 | - | 213 | 170 | 62 | 89 | 62 | - |
| EP-SPC 236-08 | 236 | 245.6 | 3 | 3535 | 90 | - | 213 | 184 | 62 | 89 | 62 | - |
| EP-SPC 250-08 | 250 | 259.6 | 3 | 3535 | 90 | - | 213 | 198 | 62 | 89 | 62 | - |
| EP-SPC 265-08 | 265 | 274.6 | 3 | 3535 | 90 | - | 213 | 213 | 62 | 89 | 62 | - |
| EP-SPC 280-08 | 280 | 289.6 | 3 | 3535 | 90 | - | 213 | 228 | 62 | 89 | 62 | - |
| EP-SPC 300-08 | 300 | 309.6 | 3 | 4040 | 100 | - | 213 | 247 | 55.5 | 102 | 55.5 | - |
| EP-SPC 315-08 | 315 | 324.6 | 3 | 4040 | 100 | - | 213 | 258 | 55.5 | 102 | 55.5 | - |
| EP-SPC 335-08 | 335 | 344.6 | 6 | 4040 | 100 | - | 213 | 280 | 55.5 | 102 | 55.5 | - |
| EP-SPC 355-08 | 355 | 364.6 | 3 | 4040 | 100 | - | 213 | 304 | 55.5 | 102 | 55.5 | - |
| EP-SPC 375-08 | 375 | 384.6 | 3 | 4545 | 110 | - | 213 | 324 | 49.5 | 114 | 49.5 | - |
| EP-SPC 400-08 | 400 | 409.6 | 6 | 4545 | 110 | 20 | 213 | 348 | 49.5 | 114 | 49.5 | 220 |
| EP-SPC 425-08 | 425 | 434.6 | 6 | 5050 | 110 | 30 | 213 | 369 | 43 | 127 | 49.5 | 245 |
| EP-SPC 450-08 | 450 | 459.6 | 6 | 5050 | 125 | 30 | 213 | 394 | 43 | 127 | 43 | 245 |
| EP-SPC 475-08 | 475 | 484.6 | 6 | 5050 | 125 | 30 | 213 | 419 | 43 | 127 | 43 | 245 |
| EP-SPC 500-08 | 500 | 509.6 | 6 | 5050 | 125 | 30 | 213 | 444 | 43 | 127 | 43 | 245 |
| EP-SPC 530-08 | 530 | 539.6 | 6 | 5050 | 125 | 30 | 213 | 474 | 43 | 127 | 43 | 245 |
| EP-SPC 560-08 | 560 | 569.6 | 5 | 5050 | 125 | - | 213 | 504 | 43 | 127 | 43 | 245 |
| EP-SPC 630-08 | 630 | 639.6 | 5 | 5050 | 125 | - | 213 | 574 | 43 | 127 | 43 | 245 |
| EP-SPC 710-08 | 710 | 719.6 | 5 | 5050 | 125 | - | 213 | 656 | 43 | 127 | 43 | 245 |
| EP-SPC 800-08 | 800 | 809.6 | 5 | 5050 | 125 | - | 213 | 737 | 43 | 127 | 43 | 245 |
| EP-SPC 1000-08 | 1000 | 1009.6 | 5 | 5050 | 125 | - | 213 | 937 | 43 | 127 | 43 | 245 |
| EP-SPC 1250-08 | 1250 | 1259.6 | 5 | 5050 | 125 | - | 213 | 1187 | 43 | 127 | 43 | 245 |
How this groove count changes selection
Because eight-belt layouts emphasize an extra-wide belt bank with significant axial envelope, start with the required speed ratio and identify the nearest standard P value. Then compare O with the guard envelope, and only after that confirm whether the listed bush and maximum bore 90–125 mm range can accommodate the shaft.
Typical application discussions for SPC include large process machinery, heavy pumps, compressors, crushing and mineral-processing auxiliaries. For this eight-belt arrangement, large industrial assemblies where hub support, guard width and matched belt sets dominate the installation review; final belt capacity and shaft loading still need to be checked against the actual machine duty.
Installation and replacement focus
For large industrial assemblies where hub support, guard width and matched belt sets dominate the installation review, alignment should be checked across both pulley faces after the bush is seated. Avoid using belt tension to pull a misaligned pulley into position; verify shaft seating and groove alignment first, then tension the matched belt set according to the belt supplier’s procedure.
Identify
Read the SPC belt marking and count the grooves before measuring the pulley.
Calculate
Use pitch/datum diameter for speed ratio; use outside diameter for space checks.
Confirm
Match shaft diameter, bush, key arrangement and the row-specific construction dimensions.
Questions to resolve before an RFQ
Which model row should I quote?
Quote the EP- designation whose P/O dimensions, groove count, bush and bore range match the machine. Add the shaft diameter and existing marking if it is a replacement.
Can another groove count be substituted?
Changing groove count changes pulley width and belt capacity. Treat that as a drive-design change rather than a direct replacement.
What if the old marking is unreadable?
Send belt markings, groove count, shaft size, photographs and measurable diameters/widths so the interface can be narrowed down.
Quote the exact row, not only the family
Send the selected EP- model, shaft diameter, driver and driven speeds, application and any drawing or replacement reference to [email protected].
