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Borelli Splined Coupling Halves – 11000 Series and Splined Sleeves – 11200 Series
The Borelli Splined Coupling Halves – 11000 Series and Splined Sleeves – 11200 Series ensure mechanical power transmission and reliable connections between cylindrical shafts and splined components in hydraulic systems. Manufactured from heat-treated UNI 16CrNi4/Pb steel, they provide wear resistance and high coupling precision with DIN 5482A spline profiles. The range includes standardized keyways for secure mounting on tapered or cylindrical shafts of hydraulic pumps and motors.
The available product codes are: 11001, 11003, 11005, 11006, 11008, 11009, 11010, 11011, 11017, 11018, 11019, 11201, 11205, 11208, 11210, 11216, 11217.
Borelli Splined Coupling Halves – 11000 Series and Splined Sleeves – 11200 Series
The Borelli Splined Coupling Halves – 11000 Series and Splined Sleeves – 11200 Series provide a technical solution for rigid connections and splined couplings in industrial and mobile hydraulic systems. The coupling system is designed to connect the drive shafts of prime movers, hydraulic pumps and gear reducers, enabling continuous torque transmission without torsional deformation. The range includes male splined coupling halves with shaft bores and keyways, as well as female sleeves with precision-ground internal splines.
The components are manufactured from UNI 16CrNi4/Pb alloy steel, precision-machined and subjected to dedicated heat treatments to maximize core toughness and surface wear resistance along the tooth flanks. The material composition ensures dimensional stability under continuous stress and impact loads typical of hydraulic drive applications.
The splined connection between the 11000 Series coupling halves and the 11200 Series sleeves is designed according to the DIN 5482A spline profile standard. The dimensional range covers DIN 5482A spline profiles from 32×28 to 100×94, ensuring precise interchangeability with motors and hydraulic units compliant with international standards. The coupling halves feature cylindrical bores ranging from 14 mm to 75 mm, equipped with standardized keyways (widths ranging from 5 mm to 20 mm).
The 11000 Series features external diameters ranging from 31.5 mm to 120 mm and overall lengths from 30 mm to 125 mm, suitable for guided installation inside pump bell housings and coupling adapters. The 11200 Series sleeves feature external diameters ranging from 36 mm to 125 mm, overall lengths between 30 mm and 105 mm, and internal grooves for positioning retaining rings with diameters ranging from 28 mm to 94 mm.
The combination of 11000 Series coupling halves and 11200 Series sleeves is ideally suited for assembling motor-pump units, earthmoving machinery, agricultural equipment, stationary industrial systems and auxiliary transmissions driven by pressurized hydraulic fluid.
| Specification | Value |
|---|---|
| Product Families | Splined Coupling Halves – 11000 Series and Splined Sleeves – 11200 Series |
| Manufacturer Brand | Oleodinamica Borelli |
| Construction Material | Heat-treated UNI 16CrNi4/Pb steel |
| Spline Profile Standard | DIN 5482A |
| Available DIN 5482A Spline Profiles | 32×28, 48×44, 58×53, 72×66, 80×74, 100×94 |
| Coupling Half Bore Diameter (A) | 14 mm to 75 mm |
| Coupling Half External Diameter (B) | 31.5 mm to 120 mm |
| Coupling Half Keyway Width (D) | 5 mm to 20 mm |
| Coupling Half Keyway Dimension (C) | 16.1 mm to 69.4 mm |
| Coupling Half Length (L) | 30 mm to 125 mm |
| Sleeve Length (G) | 30 mm to 105 mm |
| Sleeve External Diameter (H) | 36 mm to 125 mm |
| Sleeve Internal Groove Diameter (I) | 28 mm to 94 mm |
| Application | Rigid couplings for hydraulic mechanical power transmission |
| Model / Series | Product Code | DIN 5482A Profile | Bore A (mm) | Diameter B (mm) | Dimension C (mm) | Keyway D (mm) | Length G (mm) | Diameter H (mm) | Diameter I (mm) | Length L (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| Coupling Half 11000 | 11001 | – | 14 | – | 16.1 | 5 | – | – | – | 30 |
| Coupling Half 11000 | 11003 | 32×28 | 19 | 31.5 | 21.6 | 6 | – | – | – | 40 |
| Sleeve 11200 | 11201 | 32×28 | – | – | – | – | 30 | 36 | 28 | – |
| Coupling Half 11000 | 11005 | 48×44 | 24 | 47.5 | 27 | 8 | – | – | – | 50 |
| Coupling Half 11000 | 11006 | 48×44 | 28 | 47.5 | 31 | 8 | – | – | – | 60 |
| Sleeve 11200 | 11205 | 48×44 | – | – | – | – | 44 | 55 | 44 | – |
| Coupling Half 11000 | 11008 | 58×53 | 38 | 57.5 | 41.6 | 10 | – | – | – | 80 |
| Coupling Half 11000 | 11009 | 58×53 | 42 | 64 | 45.7 | 12 | – | – | – | 80 |
| Sleeve 11200 | 11208 | 58×53 | – | – | – | – | 49 | 68 | 53 | – |
| Coupling Half 11000 | 11010 | 72×66 | 48 | 71.3 | 52.5 | 14 | – | – | – | 110 |
| Sleeve 11200 | 11210 | 72×66 | – | – | – | – | 59 | 84 | 66 | – |
| Coupling Half 11000 | 11011 | 80×74 | 55 | 84 | 59.3 | 16 | – | – | – | – |
| Sleeve 11200 | 11216 | 80×74 | – | – | – | – | 90 | 100 | 74 | – |
| Coupling Half 11000 | 11017 | 100×94 | 60 | 99.3 | 64.4 | 18 | – | – | – | 125 |
| Coupling Half 11000 | 11018 | 100×94 | 65 | 99.3 | 69.4 | 18 | – | – | – | 125 |
| Sleeve 11200 | 11217 | 100×94 | – | – | – | – | 105 | 125 | 94 | – |
| Coupling Half 11000 | 11019 | – | 75 | 120 | – | 20 | – | – | – | – |