Borelli Splined Coupling Halves – 15000 Series
The Borelli Splined Coupling Halves – 15000 Series are hydraulic transmission components designed for power transmission and compliant with DIN 5482 standards. Manufactured from heat-treated UNI 16CrNi4/Pb steel, they also include variants made from quenched and tempered UNI 38NiCrMo4/Pb steel with nitriding treatment (Tenifer), providing mechanical strength of 95–105 kg/mm². They ensure reliable coupling with Vickers and Denison pumps. The available product codes are: 15001, 15002, 15003, 15004, 15005, 15006, 15007, 15008, 15009.
The Borelli Splined Coupling Halves – 15000 Series provide an advanced engineering solution for hydraulic applications, developed for precision mechanical coupling between splined shafts and hydraulic pumps. Accurate machining ensures high torque transmission efficiency and minimizes vibration within hydraulic systems.
These components are distinguished by the use of high-performance materials capable of withstanding the stresses encountered in hydraulic systems. Standard versions are manufactured from UNI 16CrNi4/Pb steel, which undergoes specific heat treatments to increase durability and wear resistance. For high-load applications, the range includes coupling halves manufactured from quenched and tempered UNI 38NiCrMo4/Pb steel. These specific models undergo an additional nitriding treatment (Tenifer), providing superior surface hardness and structural mechanical strength ranging from 95 to 105 kg/mm².
The geometry of these technical components is designed in accordance with strict international industrial standards. The reference diameter of the spline profile complies with DIN 5482 standards (indicated by dimension B). The available configurations feature different numbers of teeth, ranging from a minimum of 18 to a maximum of 27, with spline profile dimensions from 35×31 mm to 58×53 mm. This dimensional variety enables precise matching with the motor shafts used in hydraulic pumping systems.
The Borelli Splined Coupling Halves – 15000 Series are classified into specific pump groups (identified by the letters A, B, C, D and E) to simplify identification, selection and installation. They are directly compatible with pumps manufactured by leading industry brands, including Vickers (models V100, V200, 25V, 30V, 35V, 45V, V10, V20, PFB Series and PVB Series) and Denison (models TMB, T3B, T3CB, T2D, TDC, T1C and TDCB).
The catalogue specifies individual dimensions (identified by references A to M in the technical datasheet), including external diameters and hub lengths that vary according to the product code. The tight manufacturing tolerances applied to the spline profiles minimize unwanted play during rotation under heavy loads. This precise engineering helps prevent premature wear of both the coupling and the driven shaft, significantly reducing unscheduled maintenance requirements and maximizing the reliability of the entire hydraulic system. Integrating these components into hydraulic installations helps ensure operational continuity for industrial professionals.
| Specification | Value |
|---|---|
| Product Series | 15000 |
| Material (Standard Versions) | UNI 16CrNi4/Pb steel (heat-treated) |
| Material (Special Versions *) | Quenched and tempered UNI 38NiCrMo4/Pb steel |
| Heat Treatment (Special Versions) | Nitriding (Tenifer) |
| Mechanical Strength R (Special Versions) | 95 ÷ 105 kg/mm² |
| Reference Standard (Dimension B) | DIN 5482 |
| Number of Teeth (Range) | 18, 20, 23, 27 |
| Pump Groups | A, B, C, D, E |
| Compatible Pump Brands | Vickers, Denison |
| Product Code | Pump Group | Profile | Number of Teeth |
|---|---|---|---|
| 15001 | A | 35×31 | 18 |
| 15002 | B-C | 35×31 | 18 |
| 15003 | A | 40×36 | 20 |
| 15004 | B-C | 40×36 | 20 |
| 15005 | A | 48×44 | 23 |
| 15006 | B-C | 48×44 | 23 |
| 15007 | D-E | 48×44 | 23 |
| 15008 | B-C | 58×53 | 27 |
| 15009 | D-E | 58×53 | 27 |