✦ Roller-race contact – Each cylindrical roller contacts both raceways through a 45° contact angle, achieving balanced load distribution.
✦ Ring surface – Both rings are finished with plain cylindrical surfaces, free of gear tooth features.
✦ Ring production – Rings are produced via ring rolling process from vacuum-degassed steel, ensuring fine grain structure.
✦ Raceway tolerance – Raceways are ground to P4 tolerance class with a surface finish of 0.25 µm Ra.
✦ Hardness profile – Rolling surfaces hardened to 60–64 HRC with a case depth of 2.5–3.5 mm.
✦ Seal groove design – Grooves are machined with a rectangular profile and undercut relief for secure seal retention.












