{"id":14496,"date":"2026-11-04T12:28:18","date_gmt":"2026-11-04T11:28:18","guid":{"rendered":"https:\/\/lubeteam.it\/?post_type=product&p=14496"},"modified":"2026-11-05T10:03:48","modified_gmt":"2026-11-05T09:03:48","slug":"borelli-support-for-bosch-group-2-pumps-25408-series","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/borelli-support-for-bosch-group-2-pumps-25408-series\/","title":{"rendered":"Borelli Support for Bosch Group 2 Pumps – 25408 Series"},"content":{"rendered":"

Construction and Mechanical Features<\/h3>\n

The Borelli Support for Bosch Group 2 Pumps – 25408 Series<\/strong> is a support assembly designed for coupling Bosch Group 2 hydraulic pumps. It absorbs external stresses generated by pulley, gear or belt transmissions, preventing these loads from acting directly on the pump’s primary shaft. The assembly is housed within the housing component (code 25006.2), machined with a 52 mm centering shoulder featuring an H8 tolerance and a depth of 8 mm, combined with an external collar with a centering diameter of 80 f7.<\/p>\n

The support incorporates a 3304 A bearing (code 503304), axially secured by a UNI 7435-20 Seeger retaining ring (code 902000). Internal protection and lubricant retention are provided by a radial shaft seal measuring 20x40x7 mm (code 302040). The connecting shaft (code AC02\/S) features a standardized tapered end with a 1:5 taper ratio and a nominal base diameter of 20 mm.<\/p>\n

Load Capacity and Operating Specifications<\/h3>\n

The assembly ensures maximum mechanical reliability under demanding operating conditions, allowing external radial loads of up to 98 daN applied at the shaft end and an axial load capacity of 95 daN. The structural rigidity of the housing and the rotational precision of the 3304 A bearing help maintain transmission component alignment and protect the rotary seals of the connected hydraulic pump.<\/p>\n

Mounting Dimensions and Fastening Interfaces<\/h3>\n

The support housing features a rectangular flange measuring 120 mm in height and 92 mm in width. The external mounting interface includes:<\/p>\n

    \n
  • 4 through-holes with a diameter of 9 mm and 18 mm diameter counterbores, arranged with horizontal center-to-center spacing of 72 mm and vertical center-to-center spacing of 100 mm (symmetrical dimension of 34.5 mm relative to the axis).<\/li>\n
  • A shaft projection with an overall length of 45 mm, M14x1.5 thread, UNI 28675 hexagonal nut with a thickness of 8 mm (code 601415), 14 mm diameter Grower spring lock washer (code 801400) and 4×6.5 UNI 6606 Woodruff keyway (code 700465).<\/li>\n
  • A hydraulic pump mounting side equipped with 4 M10 blind threaded holes with a usable depth of 30 mm, arranged in a square 60×60 mm bolt pattern for rigid mounting of the Bosch Group 2 pump housing.<\/li>\n<\/ul>\n

    Technical Summary Table of the Main Specifications of the Borelli Support for Bosch Group 2 Pumps – 25408 Series<\/h3>\n
    \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
    Product Series<\/td>\n25408<\/td>\n<\/tr>\n
    Pump Application<\/td>\nBosch Group 2<\/td>\n<\/tr>\n
    Permissible Radial Load<\/td>\n98 daN<\/td>\n<\/tr>\n
    Permissible Axial Load<\/td>\n95 daN<\/td>\n<\/tr>\n
    Installed Bearing<\/td>\n3304 A (Code 503304)<\/td>\n<\/tr>\n
    Shaft Type<\/td>\n1:5 tapered (Code AC02\/S)<\/td>\n<\/tr>\n
    Shaft Base Diameter<\/td>\n\u00d8 20 mm<\/td>\n<\/tr>\n
    Shaft Key<\/td>\n4×6.5 Woodruff key UNI 6606 (Code 700465)<\/td>\n<\/tr>\n
    Shaft End Thread<\/td>\nM14x1.5 with UNI 28675 nut and 14 mm diameter Grower spring lock washer<\/td>\n<\/tr>\n
    Radial Shaft Seal<\/td>\n20x40x7 mm (Code 302040)<\/td>\n<\/tr>\n
    Retaining Ring<\/td>\nSeeger UNI 7435-20 (Code 902000)<\/td>\n<\/tr>\n
    Centering Diameters<\/td>\n\u00d8 52 H8 (8 mm depth) \/ \u00d8 80 f7<\/td>\n<\/tr>\n
    External Flange Dimensions<\/td>\n120 x 92 mm<\/td>\n<\/tr>\n
    External Mounting Holes<\/td>\n4 holes \u00d8 9 mm with \u00d8 18 mm counterbores (72 x 100 mm center-to-center spacing)<\/td>\n<\/tr>\n
    Pump Mounting<\/td>\n4 M10 threaded holes x 30 mm deep (60 x 60 mm center-to-center spacing)<\/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\n
    Model \/ Component<\/th>\nExploded View Position<\/th>\nProduct Code<\/th>\nTechnical Description \/ Standard<\/th>\nQuantity<\/th>\n<\/tr>\n<\/thead>\n
    Complete Support – 25408 Series<\/td>\n–<\/td>\n25408<\/td>\nComplete Support for Bosch Group 2 Pumps<\/td>\n1<\/td>\n<\/tr>\n
    Housing<\/td>\n1<\/td>\n25006.2<\/td>\nSupport housing<\/td>\n1<\/td>\n<\/tr>\n
    Nut<\/td>\n2<\/td>\n601415<\/td>\nUNI 28675 M14x1.5 hexagonal nut<\/td>\n1<\/td>\n<\/tr>\n
    Washer<\/td>\n3<\/td>\n801400<\/td>\nGrower spring lock washer, dia. 14 mm<\/td>\n1<\/td>\n<\/tr>\n
    Shaft Seal<\/td>\n4<\/td>\n302040<\/td>\n20x40x7 mm rotary shaft seal<\/td>\n1<\/td>\n<\/tr>\n
    Seeger Retaining Ring<\/td>\n5<\/td>\n902000<\/td>\nCirclip \/ Seeger UNI 7435-20<\/td>\n1<\/td>\n<\/tr>\n
    Bearing<\/td>\n6<\/td>\n503304<\/td>\n3304 A ball bearing<\/td>\n1<\/td>\n<\/tr>\n
    Key<\/td>\n7<\/td>\n700465<\/td>\n4×6.5 Woodruff key UNI 6606<\/td>\n1<\/td>\n<\/tr>\n
    Shaft<\/td>\n8<\/td>\nAC02\/S<\/td>\n1:5 tapered shaft for Bosch Group 2 pumps<\/td>\n1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    The Borelli Support for Bosch Group 2 Pumps – 25408 Series is a mechanical assembly designed for Bosch Group 2 hydraulic pumps, capable of withstanding radial loads of up to 98 daN and axial loads of 95 daN. It features a 3304 A double-row ball bearing, a shaft with a 1:5 taper ratio, a 20x40x7 shaft seal and a flanged housing with a 52 H8 mm centering diameter.<\/p>\n

    The available product and component codes are: 25408 (complete assembly), 25006.2, 601415, 801400, 302040, 902000, 503304, 700465, AC02\/S.<\/p>\n","protected":false},"featured_media":14386,"template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[511,140],"product_tag":[329],"class_list":{"0":"post-14496","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-supports","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 Support for Bosch Group 2 Pumps - 25408 Series \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"Borelli Support for Bosch Group 2 Pumps - 25408 Series: 3304 A bearing, 1:5 tapered shaft, 20x40x7 shaft seal and 98 daN load capacity. 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