{"id":14461,"date":"2026-11-04T12:30:15","date_gmt":"2026-11-04T11:30:15","guid":{"rendered":"https:\/\/lubeteam.it\/?post_type=product&p=14461"},"modified":"2026-11-05T09:40:42","modified_gmt":"2026-11-05T08:40:42","slug":"borelli-cast-iron-iso-through-shaft-speed-increaser-72000-series","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/borelli-cast-iron-iso-through-shaft-speed-increaser-72000-series\/","title":{"rendered":"Borelli Cast Iron ISO Through-Shaft Speed Increaser – 72000 Series"},"content":{"rendered":"

Operating Principle and Applications<\/h3>\n

The Borelli Cast Iron ISO Through-Shaft Speed Increaser – 72000 Series is an essential mechanical component used to connect gear pumps to the power take-offs of agricultural tractors[cite: 1, 2]. Since the standard PTO output speed is 540 rpm, this speed increaser adjusts that speed to the optimal operating speeds required by hydraulic pumps[cite: 2]. The system is also designed to accommodate different input speeds, provided that the final output speed of the speed increaser never exceeds the maximum limit of 3000 rpm[cite: 2].<\/p>\n

Construction Features and Materials<\/h3>\n

The structural reliability of the Borelli Cast Iron ISO Through-Shaft Speed Increaser – 72000 Series is ensured by the quality of the materials used[cite: 1, 2]. The housings are manufactured from high-strength cast iron, providing strength and durability even under demanding operating conditions[cite: 2]. The internal gears are designed in strict compliance with international ISO\/DIN 3990-80 standards and manufactured from special UNI 18NiCrMo5 steel[cite: 2]. The gear teeth feature a corrected, low-profile design: this specific geometry provides the entire transmission mechanism with both greater load resistance and exceptionally quiet operation[cite: 2]. The shafts, which are essential for power transmission, are manufactured from UNI 16CrNi4 steel and connected to the gears through splined profiles[cite: 2]. This engineering solution enables them to withstand the high operating torque loads specified in the catalogue[cite: 2].<\/p>\n

Torque Management and Operating Temperatures<\/h3>\n

The device is designed to handle demanding operating loads[cite: 2]. The nominal torque ratings specified for these speed increasers refer to continuous-duty operating conditions[cite: 2]. However, under intermittent-duty conditions, the mechanical structure can withstand torque loads exceeding the nominal ratings by up to 20%[cite: 2]. Regarding operating temperatures, the system is designed to maintain efficiency provided that the temperature during continuous operation never exceeds the maximum limit of 120\u00b0C[cite: 2].<\/p>\n

Lubrication Specifications and Maintenance<\/h3>\n

To ensure proper operation and extend the service life of the Borelli Cast Iron ISO Through-Shaft Speed Increaser – 72000 Series, oil-bath lubrication is required[cite: 2]. The correct use of SAE 90 oil is recommended[cite: 2]. The lubricant level, with a maximum oil capacity of 0.350 litres, must be visually checked through the dedicated transparent sight glass every 1500 operating hours[cite: 2, 4]. The first oil change is essential to remove any residues generated during the running-in period and must be performed after the initial 60-80 hours of operation[cite: 2].<\/p>\n

Pump Mounting and Installation<\/h3>\n

Installing and mounting hydraulic pumps onto the speed increaser requires a coupling half and an adapter flange specifically suited to the application[cite: 2]. Therefore, it is necessary to specify the exact flange type and the shaft configuration of the pump being used[cite: 2].<\/p>\n

Technical Summary Table of the Main Specifications of the Borelli Cast Iron ISO Through-Shaft Speed Increaser – 72000 Series<\/h3>\n
\n\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
Housing Material<\/td>\nHigh-strength cast iron<\/td>\n<\/tr>\n
Gear Material<\/td>\nUNI 18NiCrMo5 Steel (ISO\/DIN 3990-80 Standards)<\/td>\n<\/tr>\n
Shaft Material<\/td>\nUNI 16CrNi4 Steel<\/td>\n<\/tr>\n
Power Take-Off Input Speed<\/td>\n540 rpm<\/td>\n<\/tr>\n
Maximum Output Speed<\/td>\n3000 rpm<\/td>\n<\/tr>\n
Gear Tooth Profile<\/td>\nCorrected, low-profile teeth<\/td>\n<\/tr>\n
Torque Overload Allowance (Intermittent Duty)<\/td>\n+20%<\/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
Oil Level Inspection<\/td>\nEvery 1500 hours<\/td>\n<\/tr>\n
First Oil Change<\/td>\nAfter 60-80 hours<\/td>\n<\/tr>\n
Maximum Operating Temperature<\/td>\n120\u00b0C<\/td>\n<\/tr>\n
Standard Power (kW)<\/td>\n37 kW<\/td>\n<\/tr>\n
Weight (kg)<\/td>\n15.5 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
Model \/ Product Code<\/th>\nRatio (N.1\/N.2)<\/th>\nOutput Speed (N.2)<\/th>\nTorque M2 (daNm)<\/th>\n<\/tr>\n<\/thead>\n
72005<\/td>\n1<\/td>\n540<\/td>\n31<\/td>\n<\/tr>\n
72006<\/td>\n1.5<\/td>\n810<\/td>\n26<\/td>\n<\/tr>\n
72007<\/td>\n2<\/td>\n1080<\/td>\n21<\/td>\n<\/tr>\n
72008<\/td>\n2.5<\/td>\n1408<\/td>\n18<\/td>\n<\/tr>\n
72009<\/td>\n3<\/td>\n1620<\/td>\n16<\/td>\n<\/tr>\n
72011<\/td>\n3.5 and 3.8 (table variants)<\/td>\n1836 \/ 2057<\/td>\n13 \/ 11.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

The Borelli Cast Iron ISO Through-Shaft Speed Increaser – 72000 Series is designed to connect gear pumps to the power take-offs of agricultural tractors. Manufactured from high-strength cast iron, it features UNI 18NiCrMo5 steel gears with a low-profile tooth design for quieter operation and greater mechanical strength. It supports output speeds of up to 3000 rpm and continuous operating temperatures of up to 120\u00b0C. SAE 90 oil lubrication is required. The available product codes are: 72005, 72006, 72007, 72008, 72009, 72011. All product codes specific to this series listed in the document have been included.<\/p>\n","protected":false},"featured_media":14130,"template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[508,140],"product_tag":[329],"class_list":{"0":"post-14461","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 Cast Iron ISO Through-Shaft Speed Increaser - 72000 Series \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"Buy the Borelli Cast Iron ISO Through-Shaft Speed Increaser - 72000 Series. UNI 18NiCrMo5 steel gears and maximum output speed of 3000 rpm. 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