{"id":14471,"date":"2026-11-04T12:30:07","date_gmt":"2026-11-04T11:30:07","guid":{"rendered":"https:\/\/lubeteam.it\/?post_type=product&p=14471"},"modified":"2026-11-05T09:53:40","modified_gmt":"2026-11-05T08:53:40","slug":"borelli-group-3-cast-iron-speed-reducer-97003-series","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/borelli-group-3-cast-iron-speed-reducer-97003-series\/","title":{"rendered":"Borelli Group 3 Cast Iron Speed Reducer – 97003 Series"},"content":{"rendered":"

Operating Principle and Applications<\/h3>\n

The 97003 Series speed reducers are specifically designed for the installation and connection of hydraulic motors, primarily in self-propelled agricultural machinery, earthmoving equipment and marine applications. The system is calibrated to provide a fixed output speed of 200 rpm. Accordingly, the operating speed of the connected hydraulic motor must be adjusted appropriately, with the strict requirement that the input speed never exceeds the maximum limit of 3000 rpm.<\/p>\n

Construction Features and Material Selection<\/h3>\n

The speed reducer is designed to withstand high mechanical stresses. The housings are manufactured from high-strength aluminium and cast iron. Power transmission is handled by gears carefully designed in accordance with international ISO\/DIN 3990-80 standards and manufactured from special UNI 18NiCrMo5 steel. The gear teeth undergo profile correction and shaving processes to ensure maximum meshing precision. The transmission shafts, connected to the gears using a key (12×25), are manufactured from 16CrNi4 steel. The torque ratings specified in the catalogue refer to continuous-duty operation; however, under intermittent-duty conditions, these torque ratings may be exceeded by up to 20%.<\/p>\n

Lubrication Specifications and Operating Temperatures<\/h3>\n

Thermal and mechanical performance is maintained through the use of SAE 90 lubricating oil, which ensures proper operation and extends the service life of the assembly. The lubricant level, with a maximum oil capacity of 0.220 litres, must be visually inspected through the dedicated sight glass every 2000 operating hours. The maintenance schedule requires the first oil change to be performed after the initial 100-150 hours of operation. Regarding thermal performance, the speed reducer is designed to operate safely provided that the temperature during continuous duty does not exceed 120\u00b0C.<\/p>\n

Hydraulic Motor Coupling and Mounting<\/h3>\n

The mounting system for hydraulic motors on Borelli speed reducers offers considerable versatility. Users can connect motors equipped with cylindrical shafts, which require a keyed connection, or motors with splined shafts compliant with DIN or SAE standards (such as the DIN 5482-B 35×31 splined profile), allowing direct coupling without adapters. Available flange components include options such as the aluminium SAE A flange and SAE B configurations.<\/p>\n

Technical Summary Table of the Main Specifications of the Borelli Group 3 Cast Iron Speed Reducer – 97003 Series<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Specification<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Output Speed<\/td>\n200 rpm<\/td>\n<\/tr>\n
Maximum Input Speed<\/td>\n3000 rpm<\/td>\n<\/tr>\n
Housing Material<\/td>\nHigh-strength aluminium and cast iron<\/td>\n<\/tr>\n
Gear Material<\/td>\nUNI 18NiCrMo5 Steel (ISO\/DIN 3990-80 Standard)<\/td>\n<\/tr>\n
Shaft Material<\/td>\n16CrNi4 Steel<\/td>\n<\/tr>\n
Recommended Lubricant<\/td>\nSAE 90 Oil<\/td>\n<\/tr>\n
Maximum Oil Capacity<\/td>\n0.220 litres<\/td>\n<\/tr>\n
Maximum Continuous Operating Temperature<\/td>\n120\u00b0C<\/td>\n<\/tr>\n
Splined Profile (e.g. 97003\/18)<\/td>\nDIN 5482-B 35×31<\/td>\n<\/tr>\n
Average Unit Weight<\/td>\n14.5 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Product Codes<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
Model \/ Variant<\/th>\nRatio (N.1\/N.2)<\/th>\nTorque M1 (daNm)<\/th>\nTorque M2 (daNm)<\/th>\nSpeed M2 (rpm)<\/th>\nPower (kW)<\/th>\n<\/tr>\n<\/thead>\n
97003 Series – Ratio 1.5<\/td>\n1.5<\/td>\n66<\/td>\n44<\/td>\n300<\/td>\n37<\/td>\n<\/tr>\n
97003 Series – Ratio 2<\/td>\n2<\/td>\n66<\/td>\n33<\/td>\n400<\/td>\n37<\/td>\n<\/tr>\n
97003 Series – Ratio 2.5<\/td>\n2.5<\/td>\n66<\/td>\n26.4<\/td>\n500<\/td>\n37<\/td>\n<\/tr>\n
97003 Series – Ratio 3<\/td>\n3<\/td>\n66<\/td>\n22<\/td>\n600<\/td>\n37<\/td>\n<\/tr>\n
97003 Series – Ratio 3.5<\/td>\n3.5<\/td>\n66<\/td>\n18<\/td>\n680<\/td>\n35<\/td>\n<\/tr>\n
97003 Series – Ratio 3.8<\/td>\n3.8<\/td>\n66<\/td>\n16.6<\/td>\n760<\/td>\n35<\/td>\n<\/tr>\n
97003\/6B (SAE B)<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
97003\/18<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

The Borelli Group 3 Cast Iron Speed Reducer – 97003 Series is designed to connect hydraulic motors used in agricultural machinery, earthmoving equipment and marine applications. It provides an output speed of 200 rpm with a maximum input speed of 3000 rpm. Manufactured with a high-strength cast iron housing, UNI 18NiCrMo5 steel gears (compliant with ISO\/DIN 3990-80 standards) and 16CrNi4 steel shafts, it supports continuous operating temperatures of up to 120\u00b0C.
\nThe available product codes and documented variants are: 97003\/6B, 97003\/18 and transmission ratios from 1.5 to 3.8.<\/p>\n","protected":false},"featured_media":14210,"template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[509,140],"product_tag":[329],"class_list":{"0":"post-14471","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-speed-reducers","7":"product_cat-transmission-components-and-accessories-for-pumps","8":"product_tag-oleodinamica-borelli","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple"},"yoast_head":"\nBorelli Group 3 Cast Iron Speed Reducer - 97003 Series \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"Borelli Group 3 Cast Iron Speed Reducer - 97003 Series for hydraulic motors. 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