Borelli Motor Coupling Halves – 16200 Series
The Borelli Motor Coupling Halves – 16200 Series are mechanical components manufactured from heat-treated UNI 16CrNi4/Pb steel. Special versions are manufactured from quenched and tempered UNI 38NiCrMo4/Pb steel and subjected to a nitriding treatment (Tenifer), achieving a mechanical strength of R = 95–105 kg/mm². These hydraulic transmission components are available in various spline configurations and coupling dimensions.
The available product codes are: 16201, 16202, 16203, 16204, 16205, 16206, 16207, 16208, 16209, 16210, 16211, 16212, 16213, 16214, 16215, 16216, 16217.
The Borelli Motor Coupling Halves – 16200 Series provide a specialized technical solution for power transmission in hydraulic systems. The standard structure of these splined coupling halves is manufactured from UNI 16CrNi4/Pb steel, a material selected for its mechanical properties and subjected to specific heat treatments to ensure long-term operational efficiency. The use of this heat-treated steel is the standard manufacturing specification for the splined bars, splined couplings and chain couplings in the range.
For applications requiring superior mechanical strength, the series includes special versions (identified by an asterisk in the manufacturer’s technical documentation) manufactured from quenched and tempered UNI 38NiCrMo4/Pb steel. These specific coupling halves undergo an advanced nitriding treatment, commonly known as the Tenifer process. Thanks to this surface treatment, the components achieve a mechanical strength (R) ranging from 95 to 105 kg/mm², ensuring optimal performance even under high mechanical stress.
The Borelli Motor Coupling Halves – 16200 Series offers a wide variety of spline specifications to accommodate different motor shaft configurations. Available pitches include 3/8″, 1/2″, 3/4″ and 1″, combined with a number of teeth ranging from a minimum of 14 to a maximum of 24, depending on the product code. The dimensional specifications cover a broad range of applications: the internal diameter (A) ranges from 14 mm to 80 mm, while the external flange diameter (B) ranges from 53.6 mm to 157.2 mm. The overall coupling half length (L) also varies, ranging from 30 mm for the most compact models to 150 mm for larger models. The fastening holes (C) feature metric threads ranging from M8 to M16, providing fastening options suited to the coupling dimensions.
| Specification | Value |
|---|---|
| Base Material | Heat-treated UNI 16CrNi4/Pb steel |
| Special Version Material (*) | Quenched and tempered UNI 38NiCrMo4/Pb steel |
| Special Version Treatment | Nitriding (Tenifer) |
| Mechanical Strength (R) | 95 – 105 kg/mm² |
| Available Pitches (Spline Teeth) | 3/8″, 1/2″, 3/4″, 1″ |
| Number of Teeth | 14 to 24 |
| Product Code | Pitch | Number of Teeth | Dimension A | Dimension B | Dimension C | Dimension L |
|---|---|---|---|---|---|---|
| 16201 | 3/8″ | 16 | 14 | 53.6 | M8 | 30 |
| 16202 | 3/8″ | 16 | 19 | 53.6 | M8 | 40 |
| 16203 | 3/8″ | 16 | 24 | 53.6 | M8 | 40 |
| 16204 | 1/2″ | 14 | 24 | 63.26 | M8 | 50 |
| 16205 | 1/2″ | 16 | 28 | 70 | M10 | 65 |
| 16206 | 1/2″ | 16 | 32 | 70 | M10 | 87 |
| 16207 | 1/2″ | 18 | 38 | 78.5 | M10 | 85 |
| 16208 | 3/4″ | 14 | 38 | 94.8 | M10 | 85 |
| 16209 | 1/2″ | 18 | 42 | 78.5 | M10 | 110 |
| 16210 | 3/4″ | 14 | 42 | 94.8 | M10 | 110 |
| 16211 | 1/2″ | 19 | 48 | 83.7 | M12 | 110 |
| 16212 | 3/4″ | 16 | 48 | 107.2 | M12 | 110 |
| 16213 | 3/4″ | 16 | 55 | 107.2 | M12 | 110 |
| 16214 | 3/4″ | 20 | 60 | 131.7 | M14 | 125 |
| 16215 | 3/4″ | 20 | 65 | 131.7 | M14 | 145 |
| 16216 | 3/4″ | 24 | 75 | 156.12 | M16 | 145 |
| 16217 |