{"id":14459,"date":"2026-11-04T12:30:16","date_gmt":"2026-11-04T11:30:16","guid":{"rendered":"https:\/\/lubeteam.it\/?post_type=product&p=14459"},"modified":"2026-11-05T09:40:40","modified_gmt":"2026-11-05T08:40:40","slug":"borelli-group-3-speed-increaser-71000-series","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/borelli-group-3-speed-increaser-71000-series\/","title":{"rendered":"Borelli Group 3 Speed Increaser – 71000 Series"},"content":{"rendered":"

Operating Principle and Applications<\/h3>\n

The Borelli Group 3 Speed Increaser – 71000 Series<\/strong> is a mechanical component specifically designed to connect gear pumps to the power take-offs (PTOs) of agricultural tractors. Since the standard PTO output speed is 540 rpm, the speed increaser adjusts this speed to the appropriate operating speeds required by the connected hydraulic pumps. The system is also compatible with different input speeds, provided that the output speed of the speed increaser never exceeds the maximum limit of 3000 rpm.<\/p>\n

Construction Features and Materials<\/h3>\n

The Borelli Group 3 Speed Increaser – 71000 Series is designed to ensure high mechanical strength under demanding operating conditions. The housings are manufactured from cast aluminium and high-strength cast iron. The core transmission system consists of gears designed and dimensioned in strict compliance with ISO\/DIN 3990-80 standards and manufactured from UNI 18NiCrMo5 steel. The gear teeth feature a corrected, low-profile design: this specific geometry provides excellent mechanical strength and ensures quiet operation. The shafts, manufactured from UNI 16CrNi4 steel, are connected to the gears through splined profiles, a technical solution that increases their ability to withstand the operating torque loads specified in the catalogue.<\/p>\n

Operating Torque and Conditions<\/h3>\n

The torque specifications provided for the various models of the Borelli Group 3 Speed Increaser – 71000 Series refer to continuous-duty operating conditions. When the component is used under intermittent-duty conditions, the nominal torque ratings may be exceeded by up to 20%. Regarding thermal specifications, the operating temperature during continuous duty must not exceed 120\u00b0C. The standard total weight of the assembly is approximately 8.4 kg, with a rated power capacity of 20 kW.<\/p>\n

Lubrication and Maintenance<\/h3>\n

The reliability and service life of the speed increaser depend on proper lubricant maintenance. The system requires the exclusive use of SAE 90 oil. The lubricant level must be visually checked through the dedicated inspection sight glass every 1500 operating hours. The maximum oil capacity of the assembly is 0.350 litres. It is essential to perform the first oil change after the initial 60-80 operating hours to remove any residues generated during the running-in period.<\/p>\n

Pump Mounting and Flange Configurations<\/h3>\n

Proper installation and mounting of hydraulic pumps onto the speed increaser require a coupling half and a specific adapter flange for each configuration. During product selection, it is essential to correctly identify the flange type (e.g. SAE A Group 3, code 96100, or SAE B Group 3, code 96101) and the shaft configuration of the pump being used. For special applications involving pumps with specifications that differ from the listed standards, a preliminary technical assessment is required.<\/p>\n

Technical Summary Table of the Main Specifications of the Borelli Group 3 Speed Increaser – 71000 Series<\/h3>\n
\n\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
Standard PTO Input Speed<\/td>\n540 rpm<\/td>\n<\/tr>\n
Maximum Output Speed<\/td>\n3000 rpm<\/td>\n<\/tr>\n
Housing Material<\/td>\nCast aluminium and high-strength cast iron<\/td>\n<\/tr>\n
Gear Material (ISO\/DIN 3990-80)<\/td>\nUNI 18NiCrMo5 Steel<\/td>\n<\/tr>\n
Shaft Material<\/td>\nUNI 16CrNi4 Steel<\/td>\n<\/tr>\n
Shaft\/Gear Coupling Type<\/td>\nSplined<\/td>\n<\/tr>\n
Maximum Operating Temperature (Continuous Duty)<\/td>\n120\u00b0C<\/td>\n<\/tr>\n
Lubricating Oil Type<\/td>\nSAE 90<\/td>\n<\/tr>\n
Maximum Oil Capacity<\/td>\n0.350 litres<\/td>\n<\/tr>\n
Available Transmission Ratios<\/td>\n1 \/ 1.5 \/ 2.2 \/ 2.5 \/ 3 \/ 3.5 \/ 3.8<\/td>\n<\/tr>\n
Rated Power<\/td>\n20 kW<\/td>\n<\/tr>\n
Total Assembly Weight<\/td>\n8.4 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
Product Code<\/th>\nShaft \/ Flange Type<\/th>\nProfile<\/th>\n<\/tr>\n<\/thead>\n
71001<\/td>\nMale PTO Shaft<\/td>\n1″ 3\/8 Z6<\/td>\n<\/tr>\n
71002<\/td>\nFemale PTO Shaft<\/td>\n1″ 3\/8 Z6<\/td>\n<\/tr>\n
71003<\/td>\nFemale PTO Shaft (Quick Coupling)<\/td>\n1″ 3\/8 Z6<\/td>\n<\/tr>\n
71210<\/td>\nLong Female PTO Shaft<\/td>\nZ21 16\/32″ DP<\/td>\n<\/tr>\n
71004<\/td>\nFemale PTO Shaft<\/td>\n1″ 3\/8 Z6<\/td>\n<\/tr>\n
96100<\/td>\nSAE A Group 3 Flange<\/td>\n–<\/td>\n<\/tr>\n
96101<\/td>\nSAE B Group 3 Flange<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

The Borelli Group 3 Speed Increaser – 71000 Series is designed to connect hydraulic gear pumps to the power take-offs of agricultural tractors. With a standard input speed of 540 rpm, it supports maximum output speeds of up to 3000 rpm. Manufactured with cast aluminium or high-strength cast iron housings and UNI 18NiCrMo5 steel gears, it ensures exceptionally quiet operation and high mechanical strength. SAE 90 oil lubrication is required for optimal performance.
\nThe available product codes are: 71001, 71002, 71003, 71004, 71210, 96100, 96101.<\/p>\n","protected":false},"featured_media":14126,"template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[508,140],"product_tag":[329],"class_list":{"0":"post-14459","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":"\nBorelli Group 3 Speed Increaser - 71000 Series \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"The Borelli Group 3 Speed Increaser - 71000 Series connects gear pumps to tractor power take-offs. 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