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Borelli Cast Iron Support for Group 3 Pumps – 25610/40 Series
The Borelli Cast Iron Support for Group 3 Pumps – 25610/40 Series ensures rigid and reliable coupling for Group 3 hydraulic pumps. Designed to withstand high radial loads through a 3209 A rolling bearing and a 40 mm diameter shaft, it incorporates a DIN 5482 35×31 splined hub, sealing components and a dedicated grease nipple. It provides maximum protection for the pump shaft in demanding industrial mechanical power transmission applications. The available product and component codes are: 25610/40, 403200, 940182, 404300, 500000.1, 904500, 503209, 28000.1, COPO85, 304560, AC40.
Borelli Cast Iron Support for Group 3 Pumps – 25610/40 Series
The Borelli Cast Iron Support for Group 3 Pumps – 25610/40 Series is an intermediate mechanical assembly specifically designed to isolate the drive shaft of a Group 3 hydraulic pump from radial and axial stresses generated by transmission components such as belts, pulleys or gears. By incorporating a 3209 A double-row ball bearing and a dedicated 40 mm diameter hollow/male shaft (AC40), the assembly transfers mechanical loads (up to 395 daN and 290 daN along the shaft axis and 170 daN on the opposite side) directly to the robust cast iron structure, protecting the bushings and primary seal of the hydraulic unit.
The high-strength cast iron outer housing (code 28000.1) provides dimensional stability and geometric precision in coupling tolerances. The internal assembly includes:
The assembly features a mounting hole pattern of 130 x 98 mm, mounting centering diameters of 50.75 mm / 60 mm and a housing thickness of 65 mm (overall shaft assembly length of 158 mm). The mechanical system supports distributed dynamic radial loads of 395 daN at the main bearing, 290 daN at the intermediate shaft section and 170 daN at the shaft end.
| Specification | Value |
|---|---|
| Product Series | 25610/40 |
| Component Type | Cast iron support for hydraulic pumps |
| Compatible Pump Group | Group 3 (Gr. 3) |
| Body/Housing Material | Cast iron (housing code 28000.1) |
| Shaft Diameter | 40 mm (code AC40) |
| Spline Profile / Hub | DIN 5482 35×31 splined hub |
| Main Bearing | 3209 A (code 503209) |
| Retaining Rings | Dia. 45 mm – Quantity 2 (code 904500) |
| Radial Shaft Seal | 45x60x7 mm (code 304560) |
| O-Ring Seals | O-ring 3200 (code 403200) / O-ring (code 404300) |
| Greasing Point | M8 grease nipple (code 500000.1) |
| Drain / Vent Plug | M10x1 plug (code 940182) |
| Permissible Radial Loads | 395 daN / 290 daN / 170 daN |
| Mounting Hole Spacing | 130 mm x 98 mm / 11 mm diameter holes |
| Overall Shaft Assembly Length | 158 mm |
| Model | Component Code | Description / Function | Quantity per Assembly |
|---|---|---|---|
| 25610/40 Series | 25610/40 | Cast iron support assembly for Group 3 pumps | 1 |
| 25610/40 Series | 403200 | O-ring 3200 | 1 |
| 25610/40 Series | 940182 | M10x1 plug | 1 |
| 25610/40 Series | 404300 | O-ring | 1 |
| 25610/40 Series | 500000.1 | M8 grease nipple | 1 |
| 25610/40 Series | 904500 | Retaining ring, dia. 45 mm | 2 |
| 25610/40 Series | 503209 | 3209 A bearing | 1 |
| 25610/40 Series | 28000.1 | Housing | 1 |
| 25610/40 Series | COPO85 | Ring | 1 |
| 25610/40 Series | 304560 | 45x60x7 shaft seal | 1 |
| 25610/40 Series | AC40 | Shaft, dia. 40 mm | 1 |