305701-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 305701-C-2Z model number is decoded

the 35 mm outside diameter is the crowned track contact surface, the 12 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 9.04 kN and C0 4.555 kN already include the outer-ring bending correction that track rollers require; the C/C0 ratio of 1.98 reflects two ball sets at a 30 deg contact angle fatigue load limit Pu 0.193 kN against a 12 mm bore gives 0.75 kN per mm of bore, and the 9,500 r/min figure is a mechanical limit rather than a thermal one the maximum permissible radial loads are Fr 3.8 kN dynamically and F0r 5.4 kN statically; because the permissible static load is the lower of F0r and C0, the 4.555 kN figure governs static selection here the 15.9 mm width carries 0.57 kN per mm, the ring section measures 11.5 mm between bore and track surface, and 78 g over a 35x15.9 mm envelope is 0.140 g per mm2 of projected area for medium-high-speed cam duty the 12 mm bore and 15.9 mm width are those of the 32 series ball bearing at the same size code, while the 35 mm outside diameter is 3 mm larger than that bearing's 32 mm OD — this follows the SKF rule that cam rollers keep the ISO 15 dimension series except for the outside diameter at 12 mm bore this is the smallest cam roller in the catalogue chapter, the band chosen for compact cam drives, light indexing units and small transfer mechanisms where the 35 mm track diameter is already the largest envelope that fits 3057.. C is the flat-surface counterpart of 3058.. C; it presents the full 15.9 mm width to a flat track, which raises the contact area but leaves no margin for track angularity double row cam rollers use two cages — a ribbon-type ball-centred stamped steel cage and a snap-type ball-centred cage in PA66, glass fibre reinforced — so high-temperature duty must respect the polyamide cage's temperature ceiling the running surface here is cylindrical (flat), so the contact geometry assumes a well-aligned track; any angular misalignment between the roller axis and the guide surface moves the load straight onto the ring edges typical duties are food processing index conveyors, packaging machine timing cams and glass handling line guides this size is regularly specified for food processing index conveyors and packaging machine timing cams, where the 35 mm ring rides the cam profile and the 12 mm bore takes a g6 pin the two ball rows and the 15.9 mm wide ring make glass handling line guides a natural fit; the 78 g mass keeps the follower inertia low enough for rapid oscillating cam motion the flat profile cannot be swapped for a crowned 3058 ring without changing the contact geometry and the tolerance budget for track alignment like every double row cam roller the design prefers radial and tilting load; sustained axial thrust on the outer ring is outside the intended duty and shortens service life

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• like every double row cam roller the design prefers radial and tilting load; sustained axial thrust on the outer ring is outside the intended duty and shortens service life
• the flat profile cannot be swapped for a crowned 3058 ring without changing the contact geometry and the tolerance budget for track alignment
• the 2Z shield keeps coarse debris out but is not a contact seal, so fine abrasive dust in a wash-down environment can still reach the ball rows