Borelli Complete Splined Couplings – 11400 Series
Borelli Complete Splined Couplings – 11400 Series are hydraulic transmission components manufactured from heat-treated UNI 16CrNi4/Pb steel or nitrided UNI 38NiCrMo4/Pb steel. Featuring DIN 5482 spline profiles, they ensure reliable power transmission at ratings of up to 80 HP and maximum torque values of 45 kgm, providing high mechanical strength for industrial applications. The available product codes are: 11401 GN14, 11402 GN19, 11405 GN24, 11406 GN28, 11408 GN38, 11409 GN42, 11410 GN48, 11411 GN55, 11417 GN60, 11418 GN65, 11419 GN75.
The Borelli Complete Splined Couplings – 11400 Series provide an excellent solution for power transmission in hydraulic systems. Designed to meet demanding industrial standards, these components ensure precise and durable connections between rotating parts. The complete configuration includes a splined coupling half and its corresponding sleeve.
The standard version is manufactured from UNI 16CrNi4/Pb steel, a material subjected to specific heat treatments to optimize its surface hardness. For applications requiring superior mechanical performance, the series includes variants manufactured from quenched and tempered UNI 38NiCrMo4/Pb steel. These specific models undergo an additional nitriding treatment (Tenifer process), providing exceptional mechanical strength ranging from 95 to 105 kg/mm².
The entire range is designed around the DIN 5482 spline profile standard, ensuring compatibility and dimensional accuracy. The spline profiles range from a minimum size of 32×28 to a maximum of 100×94, with the number of teeth varying from 17 to 44 depending on the selected model. The series supports power ratings ranging from 0.5 HP for the smallest configurations to 80 HP for the largest couplings. Similarly, the torque transmission capacity ranges from 3 kgm to 45 kgm.
The coupling system is based on the interaction between the coupling halves (110xx Series) and their dedicated sleeves (112xx Series). Construction dimensions, including the overall length (L) and insertion dimension (R), are carefully specified for each product code. Dimension L ranges from 50 mm for compact models to 175 mm for more demanding applications, while dimension R ranges from 40 mm to 140 mm, ensuring precise alignment and centring.
| Specification | Value |
|---|---|
| Standard Material | Heat-treated UNI 16CrNi4/Pb steel |
| High-Strength Material (*) | Quenched and tempered UNI 38NiCrMo4/Pb steel with nitriding treatment (Tenifer) |
| Mechanical Strength (*) | 95 – 105 kg/mm² |
| Spline Profile Standard | DIN 5482 |
| Power Range (HP) | 0.5 to 80 |
| Torque Range (kgm) | 3 to 45 |
| Number of Teeth | 17 to 44 |
| Complete Coupling | Coupling Half | Sleeve | DIN 5482 Profile | Number of Teeth | L (mm) | HP | kgm | R (mm) |
|---|---|---|---|---|---|---|---|---|
| 11401 GN14 | 11001 | 11201 | 32×28 | 17 | 50 | 0.5 | 3 | 40 |
| 11402 GN19 | 11003 | 11201 | 32×28 | 17 | 60 | 1 | 3 | 50 |
| 11405 GN24 | 11005 | 11205 | 48×44 | 23 | 77 | 2 – 3 | 11 | 60 |
| 11406 GN28 | 11006 | 11205 | 48×44 | 23 | 87 | 5.5 | 11 | 70 |
| 11408 GN38 | 11008 | 11208 | 58×53 | 27 | 111 | 7.5 – 12.5 | 15 | 93 |
| 11409 GN42 | 11009 | 11208 | 58×53 | 27 | 141 | 12.5 – 20 | 15 | 123 |
| 11410 GN48 | 11010 | 11210 | 72×66 | 33 | 146 | 30 | 20 | 123 |
| 11411 GN55 | 11011 | 11216 | 80×74 | 36 | 155 | 40 | 25 | 125 |
| 11417 GN60 | 11017 | 100×94 | 44 | 175 | 45 – 50 | 30 | 140 | |
| 11418 GN65 | 11018 | 11217 | 100×94 | 44 | 175 | 55 – 60 | 35 | 140 |
| 11419 GN75 | 11019 | 100×94 | 44 | 175 | 70 – 80 | 45 | 140 |