{"id":14538,"date":"2026-11-05T10:36:24","date_gmt":"2026-11-05T09:36:24","guid":{"rendered":"https:\/\/lubeteam.it\/?post_type=product&p=14538"},"modified":"2026-11-05T10:42:39","modified_gmt":"2026-11-05T09:42:39","slug":"borelli-group-3-5-speed-increaser-80000-series-copy","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/borelli-group-3-5-speed-increaser-80000-series-copy\/","title":{"rendered":"ISO Cast Iron Speed Increaser Borelli Series 72000"},"content":{"rendered":"

Operating Principle and Performance<\/h3>\n

The ISO Cast Iron Speed Increaser Borelli Series 72000 is designed to connect gear pumps to the power take-offs (PTOs) of agricultural tractors. The standard PTO output speed is 540 rpm, so the speed increaser converts this speed into the optimal operating speeds required by hydraulic pumps. The system can accommodate other input speeds, provided that the speed increaser’s output speed does not exceed the maximum limit of 3000 rpm. The unit transmits a rated power of 37 kW, ensuring reliability in demanding operating conditions.<\/p>\n

Construction Features and Materials<\/h3>\n

The external housing is made of high-strength cast iron (and cast aluminum), designed to maintain dimensional stability under load. The mechanical assembly consists of gears designed in strict accordance with ISO\/DIN 3990-80 standards and manufactured from special UNI 18NiCrMo5 steel. Their modified, low-profile tooth geometry is optimized to provide both superior mechanical strength and low noise levels during operation.<\/p>\n

The internal transmission shafts are manufactured from UNI 16CrNi4 steel. The gears are connected to the shafts through splined couplings, an engineering solution that enables the assembly to withstand the specified maximum torque values with a substantial safety margin. The specified torque ratings apply to continuous operation; under intermittent operating conditions, these torque values may be exceeded by 20% without compromising safety. The complete speed increaser weighs 14.5 kg.<\/p>\n

Lubrication and Maintenance Parameters<\/h3>\n

To preserve service life and mechanical efficiency, only SAE 90 lubricating oil must be used. The oil level must be visually checked through the dedicated transparent sight glass every 1500 operating hours. The first mandatory oil change must be performed after the initial 60-80 operating hours. The maximum oil capacity of the housing is 0.520 liters. Finally, to prevent thermal deterioration, the operating temperature under continuous conditions must never exceed the maximum limit of 120\u00b0C.<\/p>\n

Installation and Flange Mounting<\/h3>\n

Mounting hydraulic pumps to the speed increaser always requires a coupling half and an adapter flange selected according to the specific application requirements. The output spline profile complies with DIN 5462 A8x32x36, while the input configurations vary depending on the model (DIN 9611 1″ 3\/8 Z6 male, or ASAE 1″ 3\/8 Z6 female in short or long versions).<\/p>\n

Technical Summary Table of the Main Specifications of the ISO Cast Iron Speed Increaser Borelli Series 72000<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Feature<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Housing<\/td>\nHigh-strength cast iron \/ Cast aluminum<\/td>\n<\/tr>\n
Gears<\/td>\nUNI 18NiCrMo5 steel (ISO\/DIN 3990-80)<\/td>\n<\/tr>\n
Shafts<\/td>\nUNI 16CrNi4 steel<\/td>\n<\/tr>\n
Maximum Output Speed<\/td>\n3000 rpm<\/td>\n<\/tr>\n
Power<\/td>\n37 kW<\/td>\n<\/tr>\n
Available Ratios (N.1\/N.2)<\/td>\n1 \/ 1.5 \/ 2 \/ 2.5 \/ 3 \/ 3.5 \/ 3.8<\/td>\n<\/tr>\n
Oil Type<\/td>\nSAE 90<\/td>\n<\/tr>\n
Maximum Oil Capacity<\/td>\n0.520 liters<\/td>\n<\/tr>\n
Maximum Operating Temperature<\/td>\n120\u00b0C<\/td>\n<\/tr>\n
Weight (G)<\/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
Model<\/th>\nInput Profile<\/th>\nOutput Profile<\/th>\n<\/tr>\n<\/thead>\n
72001<\/td>\nMale DIN 9611 1″ 3\/8 Z6<\/td>\nDIN 5462 A8x32x36<\/td>\n<\/tr>\n
72002<\/td>\nShort Female ASAE 1″ 3\/8 Z6 (DIN 9611 A)<\/td>\nDIN 5462 A8x32x36<\/td>\n<\/tr>\n
72003<\/td>\nLong Female ASAE 1″ 3\/8 Z6 (DIN 9611 A)<\/td>\nDIN 5462 A8x32x36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

The ISO Cast Iron Speed Increaser Borelli Series 72000 connects gear pumps to tractor power take-offs (PTOs). Cast iron housings and UNI 18NiCrMo5 steel gears ensure strength and low noise levels, withstanding high torque loads at output speeds of up to 3000 rpm. Equipped with UNI 16CrNi4 steel splined shafts, it operates safely at continuous operating temperatures of up to 120\u00b0C.<\/p>\n","protected":false},"featured_media":14539,"template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[508,140],"product_tag":[329],"class_list":{"0":"post-14538","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-speed-increasers","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":"\nISO Cast Iron Speed Increaser Borelli Series 72000 \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"ISO Cast Iron Speed Increaser Borelli Series 72000 for gear pumps. 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