YARAG-210 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-28

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018)); 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

Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

How the YARAG-210 model number is decoded

Listed in SKF 17000 chapter 2, YARAG 210 is a grub-screw insert bearing with the inner ring extended on both sides, 50x90x51.6 mm overall, whose convex spherical outer ring pivots in the spherical bore of a Y-pillow, Y-flange or take-up housing. Construction follows the Y-bearing principle: a capped and flinger-protected deep-groove ball insert, inner ring elongated for the screw points, outer ring convex-spherical for the housing seat. YAR is SKF's grub-screw insert design — an inner ring extended equally past the outer ring on both sides, the screws still 120 deg apart. the size code 210 carries the usual bore arithmetic — 50 mm (code 10 x 5) — while the leading 2 marks the ISO 15 diameter series 2 sphered-OD envelope. AG is the application variant for agricultural equipment — the same bore and OD as the standard sealed size but an application-specific grease/seal build and a conservative limiting speed for field machinery. Envelope 50x90x51.6 mm (1.969x3.543x2.031 in), outer ring 22 mm wide, C 35.1 kN, C0 23.2 kN, Pu 0.98 kN. The catalogue publishes a single speed ceiling, the limiting speed: 800 r/min; mass 750 g. Fillet discipline: the printed r_min 1 mm limit means shaft and housing fillets must stay under that radius; a fillet that bottoms the 50x90 mm insert on its chamfer tilts the whole spherical seat. Spherical-seat note in numbers: the 90 mm OD is ground spherical, so the self-aligning pivot happens on a circle roughly pi x 70 = 219.911 mm in mean circumference — keep that interface greased, because corrosion locking turns the pivot into a fixed misaligned mount. Rating split for the maintenance file: dynamic 35.1 kN (L10), static 23.2 kN (s0 shock check), fatigue 0.98 kN (adjusted life) — three separate uses for YARAG 210, none interchangeable with another. Bore-to-OD planning: OD 90 over bore 50 is a 1.8x step, while bore/overall-width gives 0.969; the spherical seat in the matching Y-housing must be specified to the 90 mm OD, not to a cylindrical housing bore. Speed ceiling of 800 r/min is the catalogue mechanical limit for THIS execution; the AG agricultural derate is deliberate, so real fan duty is planned well below it. Set-screw geometry on this size: the two 120 deg screws bear on the 50 mm shaft inside the 51.6 mm total width while the outer ring is only 22 mm wide, leaving the extended ring to carry the screw points clear of the ball track.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Do not specify the 50 mm grub-screw insert for a shaft harder than about 45 HRC without dimples: the screw points skate on hard surfaces and the unit creeps regardless of tightening torque.
• Replacement discipline: a YAR insert is not interchangeable with an eccentric-collar unit of the same envelope — the shaft may need spot-facing or collar space that does not exist.
• The 32.6 mm s1 dimension is the screw seating geometry inside the 29.6 mm of extended inner ring; a shaft step that crowds that side prevents the screws reaching the shaft squarely.
• Catalogue ratings belong to YARAG 210 as the grub two ag execution; other order numbers of the YARAG 210 size are different articles (open vs sealed, plain vs rubberized flinger, stainless vs carbon steel) and may carry different ratings or speeds — always quote the full designation.