The EP-SPB 8-Groove V-Belt Pulley Series groups 25 catalogue configurations around one buyer decision: a eight-belt pulley for higher-capacity narrow V-belt drives. Rather than treating diameter alone as the model identity, selection stays tied to the listed P/O pair, shaft interface and E/F/J/K/L/M/N construction values.
The SPB profile is 16.3 × 13 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.
SPB eight-belt specifications
Use the complete table below to identify the exact EP- model. It retains 25 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-SPB 140-08 | 140 | 147 | 3 | 2517 | 60 | - | 158 | 97 | 56.5 | 45 | 56.5 | - |
| EP-SPB 160-08 | 160 | 167 | 3 | 3020 | 75 | - | 158 | 117 | 53.5 | 51 | 53.5 | - |
| EP-SPB 170-08 | 170 | 177 | 3 | 3030 | 75 | - | 158 | 127 | 41 | 76 | 41 | - |
| EP-SPB 180-08 | 180 | 187 | 3 | 3030 | 75 | - | 158 | 137 | 41 | 76 | 41 | - |
| EP-SPB 190-08 | 190 | 197 | 3 | 3030 | 75 | - | 158 | 147 | 41 | 76 | 41 | - |
| EP-SPB 200-08 | 200 | 207 | 3 | 3535 | 90 | - | 158 | 157 | 34.5 | 89 | 34.5 | - |
| EP-SPB 212-08 | 212 | 219 | 3 | 3535 | 90 | - | 158 | 169 | 34.5 | 89 | 34.5 | - |
| EP-SPB 224-08 | 224 | 231 | 3 | 3535 | 90 | - | 158 | 181 | 34.5 | 89 | 34.5 | - |
| EP-SPB 236-08 | 236 | 243 | 3 | 3535 | 90 | - | 158 | 193 | 34.5 | 89 | 34.5 | - |
| EP-SPB 250-08 | 250 | 257 | 3 | 3535 | 90 | - | 158 | 207 | 34.5 | 89 | 34.5 | - |
| EP-SPB 280-08 | 280 | 287 | 3 | 3535 | 90 | - | 158 | 237 | 34.5 | 89 | 34.5 | - |
| EP-SPB 300-08 | 300 | 307 | 6 | 3535 | 90 | 20 | 158 | 257 | 34.5 | 89 | 34.5 | 170 |
| EP-SPB 315-08 | 315 | 322 | 6 | 3535 | 90 | 18 | 158 | 272 | 34.5 | 89 | 34.5 | 170 |
| EP-SPB 335-08 | 335 | 342 | 6 | 3535 | 90 | 18 | 158 | 292 | 34.5 | 89 | 34.5 | 170 |
| EP-SPB 355-08 | 355 | 362 | 6 | 3535 | 90 | 18 | 158 | 312 | 34.5 | 89 | 34.5 | 170 |
| EP-SPB 400-08 | 400 | 407 | 5 | 4040 | 100 | - | 158 | 357 | 28 | 102 | 28 | 200 |
| EP-SPB 450-08 | 450 | 457 | 5 | 4040 | 100 | - | 158 | 407 | 28 | 102 | 28 | 200 |
| EP-SPB 500-08 | 500 | 507 | 5 | 4040 | 100 | - | 158 | 457 | 28 | 102 | 28 | 200 |
| EP-SPB 560-08 | 560 | 567 | 5 | 4545 | 110 | - | 158 | 517 | 22 | 114 | 22 | 225 |
| EP-SPB 630-08 | 630 | 637 | 5 | 4545 | 110 | - | 158 | 587 | 22 | 114 | 22 | 225 |
| EP-SPB 710-08 | 710 | 717 | 5 | 4545 | 110 | - | 158 | 664 | 22 | 114 | 22 | 225 |
| EP-SPB 800-08 | 800 | 807 | 5 | 4545 | 110 | - | 158 | 754 | 22 | 114 | 22 | 225 |
| EP-SPB 900-08 | 900 | 907 | 5 | 4545 | 110 | - | 158 | 854 | 22 | 114 | 22 | 225 |
| EP-SPB 1000-08 | 1000 | 1007 | 5 | 5050 | 125 | - | 158 | 954 | 15.5 | 127 | 15.5 | 245 |
| EP-SPB 1250-08 | 1250 | 1257 | 5 | 5050 | 125 | - | 158 | 1204 | 15.5 | 127 | 15.5 | 245 |
How this groove count changes selection
On a eight-belt assembly, groove count fixes much of the face-width decision before the final diameter is chosen. Check the belt section and matched-belt requirement, calculate the ratio from P, verify O for surrounding clearance, then confirm the hub/bush dimensions for the exact row.
Typical application discussions for SPB include larger pumps, compressors, material-handling systems and process machinery. 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
Replacement inspection should record the old belt marking, groove count and shaft/bush reference before the worn pulley is removed. Worn grooves can disguise the original geometry, so do not identify a replacement from outside diameter alone.
Identify
Read the SPB 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].
