{"id":14486,"date":"2026-11-04T12:28:57","date_gmt":"2026-11-04T11:28:57","guid":{"rendered":"https:\/\/lubeteam.it\/?post_type=product&p=14486"},"modified":"2026-11-05T10:02:43","modified_gmt":"2026-11-05T09:02:43","slug":"borelli-splined-coupling-halves-35550-series","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/borelli-splined-coupling-halves-35550-series\/","title":{"rendered":"Borelli Splined Coupling Halves – 35550 Series"},"content":{"rendered":"

Mechanical power transmission components play a critical role in the efficiency of hydraulic systems. The Borelli Splined Coupling Halves – 35550 Series provide a reliable engineering solution for applications requiring precision and dependability in mechanical power transmission connections.<\/p>\n

Construction Features and Materials<\/h3>\n

Structural strength is an essential requirement for components subjected to torsional stresses in industrial applications. The Borelli Splined Coupling Halves – 35550 Series, together with the splined bars and chain couplings in the same product range, are manufactured entirely from UNI 16CrNi4\/Pb steel. This specific steel alloy undergoes rigorous heat treatments during the manufacturing process. The purpose of these treatments is to enhance the metal’s mechanical properties, making it suitable for withstanding the stresses typically encountered in complex hydraulic systems.<\/p>\n

Spline Profiles and Standards Compliance (DIN 5480 \/ DIN 5482)<\/h3>\n

Torque transmission efficiency and correct shaft alignment depend heavily on spline geometry. The entire 35550 Series is designed to provide precise mechanical coupling, featuring internal and external spline profiles that strictly comply with industrial standards. The external splines of the coupling halves comply with DIN 5482 standards (including dimensional profiles such as B 35×31, B 48×44, B 58×53 and B 40×36), ensuring a robust mechanical interface. Similarly, the internal splines comply with DIN 5480 standards (with variants such as N 25×1.25x18x11 H, N 30x2x14x11 H and N 40x2x18x11 H), a specification designed to ensure precise tolerances for shaft connections.<\/p>\n

Variants and Dimensional Specifications<\/h3>\n

Installation flexibility is ensured by a wide range of variants within the same series. The number of external teeth ranges from a minimum of 18 to a maximum of 27, depending on the selected product code, while the internal spline profiles are available with 14, 16 or 18 teeth. The overall length of the coupling half (dimension L) accommodates different space requirements, measuring 48 mm, 49 mm, 50 mm or 52 mm across the various standardized models. Certain product codes, such as 35553, 35554 and 35555, feature additional dimensional parameters (designated C, D and E) that define different internal geometries for specific applications.<\/p>\n

Applications in Hydraulic Systems<\/h3>\n

These components form part of the extensive range of hydraulic power control and transmission solutions supplied by Lube Team Hydraulic. Manufacturing dimensions, including parameters F and G relating to spline positioning, enable technical departments to accurately calculate installation tolerances within machinery housings. The Borelli Splined Coupling Halves – 35550 Series ensure durable mechanical connections, which are essential for maintaining the operational continuity of industrial equipment.<\/p>\n

Technical Summary Table of the Main Specifications of the Borelli Splined Coupling Halves – 35550 Series<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Specification<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Construction Material<\/td>\nUNI 16CrNi4\/Pb steel<\/td>\n<\/tr>\n
Treatment<\/td>\nHeat treatment<\/td>\n<\/tr>\n
External Spline Standard<\/td>\nDIN 5482 (e.g. B 35×31, B 48×44, B 58×53, B 40×36)<\/td>\n<\/tr>\n
Internal Spline Standard<\/td>\nDIN 5480 (e.g. N 25×1.25x18x11 H, N 30x2x14x11 H)<\/td>\n<\/tr>\n
External Teeth Range<\/td>\n18 to 27 teeth<\/td>\n<\/tr>\n
Internal Teeth Range<\/td>\n14, 16 or 18 teeth<\/td>\n<\/tr>\n
Length Range (L)<\/td>\n48 mm to 52 mm<\/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>\nNumber of External Teeth<\/th>\nExternal Spline (DIN 5482)<\/th>\nNumber of Internal Teeth<\/th>\nInternal Spline (DIN 5480)<\/th>\nL (mm)<\/th>\n<\/tr>\n<\/thead>\n
35550<\/td>\n18<\/td>\nB 35×31<\/td>\n18<\/td>\nN 25×1.25x18x11 H<\/td>\n50<\/td>\n<\/tr>\n
35551<\/td>\n23<\/td>\nB 48×44<\/td>\n18<\/td>\nN 25×1.25x18x11 H<\/td>\n48<\/td>\n<\/tr>\n
35552<\/td>\n23<\/td>\nB 48×44<\/td>\n14<\/td>\nN 30x2x14x11 H<\/td>\n48<\/td>\n<\/tr>\n
35553<\/td>\n23<\/td>\nB 48×44<\/td>\n16<\/td>\nN 35x2x16x11 H<\/td>\n50<\/td>\n<\/tr>\n
35554<\/td>\n27<\/td>\nB 58×53<\/td>\n16<\/td>\nN 35x2x16x11 H<\/td>\n49<\/td>\n<\/tr>\n
35555<\/td>\n27<\/td>\nB 58×53<\/td>\n18<\/td>\nN 40x2x18x11 H<\/td>\n52<\/td>\n<\/tr>\n
35556<\/td>\n20<\/td>\nB 40×36<\/td>\n18<\/td>\nN 25×1.25x18x11 H<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

The Borelli Splined Coupling Halves – 35550 Series provide high-precision mechanical power transmission solutions for hydraulic applications. Manufactured from heat-treated UNI 16CrNi4\/Pb steel, they ensure optimal strength and durability under load. These components feature spline profiles compliant with DIN 5480 and DIN 5482 standards, ensuring precise internal and external coupling. Ideal for demanding industrial applications. The available product codes are: 35550, 35551, 35552, 35553, 35554, 35555, 35556.<\/p>\n","protected":false},"featured_media":14283,"template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[510,140],"product_tag":[329],"class_list":{"0":"post-14486","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-splined-half-couplings","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 Splined Coupling Halves - 35550 Series \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"Borelli Splined Coupling Halves - 35550 Series, manufactured from heat-treated UNI 16CrNi4\/Pb steel. 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