305802-C-2Z bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 14 cam rollers) · extracted 2026-10-14

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 14 cam rollers); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.

Cross references & equivalents

No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.

How the 305802-C-2Z model number is decoded

the 40 mm outside diameter is the crowned track contact surface, the 15 mm bore takes the pin and the 15.9 mm overall width spreads the Hertzian contact across the thick-walled outer ring published ratings C 10.1 kN and C0 5.5 kN already include the outer-ring bending correction that track rollers require; the C/C0 ratio of 1.84 reflects two ball sets at a 30 deg contact angle fatigue load limit Pu 0.263 kN against a 15 mm bore gives 0.67 kN per mm of bore, and the 9,000 r/min figure is a mechanical limit rather than a thermal one the maximum permissible radial loads are Fr 5.85 kN dynamically and F0r 8.5 kN statically; because the permissible static load is the lower of F0r and C0, the 5.5 kN figure governs static selection here the 15.9 mm width carries 0.64 kN per mm, the ring section measures 12.5 mm between bore and track surface, and 100 g over a 40x15.9 mm envelope is 0.157 g per mm2 of projected area for medium-high-speed cam duty the 15 mm bore and 15.9 mm width are those of the 32 series ball bearing at the same size code, while the 40 mm outside diameter is 5 mm larger than that bearing's 35 mm OD — this follows the SKF rule that cam rollers keep the ISO 15 dimension series except for the outside diameter the 15 mm bore falls in the small band, the workhorse size for general cam drives, packaging machine linkages and conveyor diverters where the 40 mm crowned ring rides directly on the cam profile the 3058 prefix identifies the double row cam roller with a crowned running surface — the design to choose when the load path tends to tilt the roller axis relative to the track because there are two ball rows, this roller accepts noticeably higher tilting moments than a single row cam roller of the same outside diameter; the trade is a larger section and a lower limiting speed the crowned outer ring is ground to a 400 mm radius while the bore and width follow the standard 32-series envelope, so the roller can be swapped into an existing yoke without changing the pin or housing typical duties are tube and wire drawing guides, material handling lift tracks and paper converting web guides this size is regularly specified for tube and wire drawing guides and material handling lift tracks, where the 40 mm ring rides the cam profile and the 15 mm bore takes a g6 pin the two ball rows and the 15.9 mm wide ring make paper converting web guides a natural fit; the 100 g mass keeps the follower inertia low enough for rapid oscillating cam motion the crowned surface is ground at twice the Normal tolerance for its diameter; do not mix a 3058 ring with a 3057 flat ring in a matched pair relubrication is only possible through the inner-ring lubrication hole, which needs a matching duct in the pin; without that duct the roller is effectively sealed for life

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• relubrication is only possible through the inner-ring lubrication hole, which needs a matching duct in the pin; without that duct the roller is effectively sealed for life
• the crowned surface is ground at twice the Normal tolerance for its diameter; do not mix a 3058 ring with a 3057 flat ring in a matched pair
• the 2Z shows as a sheet steel shield, so it will not hold grease as tightly as a contact seal and will not exclude fine abrasive dust from wash-down environments