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Borelli Group 3 SAE B Cast Iron Speed Reducer – 97000 Series
The Borelli Group 3 SAE B Cast Iron Speed Reducer – 97000 Series is designed to connect hydraulic motors used in agricultural machinery, earthmoving equipment and marine applications. It provides a fixed output speed of 200 rpm while supporting a maximum input speed of 3000 rpm. Manufactured with a high-strength aluminium and cast iron housing, it features UNI 18NiCrMo5 steel gears compliant with ISO/DIN 3990-80 standards and 16CrNi4 steel shafts. The available product codes are: 97001/13, 97001/15.
Borelli Group 3 SAE B Cast Iron Speed Reducer – 97000 Series
Speed reducers are used to connect hydraulic motors in self-propelled agricultural machinery, earthmoving equipment and marine applications. The output speed of the speed reducers is fixed at 200 rpm; therefore, the operating speed of the hydraulic motors must be adjusted accordingly, provided that the input speed does not exceed 3000 rpm. Hydraulic motors can be mounted directly onto the speed reducer using either a cylindrical shaft requiring a keyed connection or a splined shaft compliant with DIN or SAE standards.
The transmission assemblies feature housings manufactured from high-strength aluminium and cast iron. The internal gears are designed in strict compliance with ISO/DIN 3990-80 standards and manufactured from UNI 18NiCrMo5 steel, with corrected and shaved gear teeth to optimize meshing. The shafts are manufactured from 16CrNi4 steel and connected to the gears using mechanical keys. The torque ratings specified in the technical tables refer to continuous-duty operation; however, under intermittent-duty conditions, these ratings may be exceeded by up to 20%.
The Borelli Group 3 SAE B Cast Iron Speed Reducer – 97000 Series supports a power rating of 68 kW and has a weight of 16 kg. Performance varies depending on the selected transmission ratio: with a ratio of 2, torque M1 is 98 daNm; with a ratio of 2.5, torque M1 increases to 112.5 daNm; and with a ratio of 3, torque M1 reaches 132 daNm. The continuous operating temperature must not exceed 120°C.
The correct use of SAE 90 oil ensures reliable operation and extends the service life of the assembly. The maximum oil capacity is 0.300 litres. The lubricant level must be visually inspected using the dedicated 3/8″ oil level plug every 2000 operating hours, while the first oil change must be performed after 100-150 hours of operation. Regarding spare parts and internal components, the housing features an SAE B cover, a 35 mm diameter hollow shaft, a pinion and a crown gear. The rotating assembly and sealing system incorporate 6008 and 6210 bearings, together with 40x52x7 and 50x65x8 oil seals.
| Specification | Value |
|---|---|
| Output Speed | 200 rpm |
| Maximum Input Speed | 3000 rpm |
| Housing Material | Aluminium and cast iron |
| Gear Material | UNI 18NiCrMo5 Steel (ISO/DIN 3990-80) |
| Shaft Material | 16CrNi4 Steel |
| Lubricating Oil | SAE 90 |
| Maximum Oil Capacity | 0.300 litres |
| Maximum Operating Temperature | 120°C |
| Power | 68 kW |
| Weight (G) | 16 kg |
| Model (Product Code) | Profile |
|---|---|
| 97001/13 | Z 13 SAE 16/32″ |
| 97001/15 | Z 15 SAE 16/32″ |