YELAG-210-115 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 YELAG-210-115 model number is decoded

The YEL2 series order number YELAG 210-115 is a SKF insert bearing (Y-bearing) for a 49.2125 mm (1.938 in) shaft: eccentric-locking-collar insert bearing with the inner ring extended on both sides, built to the ISO 15 diameter-series envelope with a sphered OD of 90 mm. Inside sits a sealed ball insert with an eccentric collar on the extended ring: collar bite locks the shaft, the contact seals retain the life grease, and the spherical OD floats in the Y-housing. YEL means collar locking instead of grub screws — fit the eccentric collar, turn it in the rotation direction until it grips, then lock the collar's own setscrew; the inner ring is extended on both sides. inch bore code -115 decodes as 1" +15/16, i.e. 49.212 mm; the metric coded size YELAG 210 shares the same envelope but its bore is the metric value, not this one. the AG suffix identifies the farm-duty variant of the range: sealed and flinger-protected for chaff and dust, with the catalogue deliberately derating its permissible speed versus the industrial execution. Envelope 49.2125x90x49.2 mm (1.938x3.543x1.937 in), outer ring 22 mm wide, C 35.1 kN, C0 23.2 kN, Pu 0.98 kN. Mounted width B1 62.7 mm includes the eccentric collar. The catalogue publishes a single speed ceiling, the limiting speed: 800 r/min; mass 940 g. Bore-to-OD planning: OD 90 over bore 49.2125 is a 1.829x step, while bore/overall-width gives 1; 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. Pitch-diameter arithmetic: dm = (49.2125+90)/2 = 69.606 mm; at the 800 r/min limiting speed the ball set runs at dn approx 0.56x10^5, reduced from an open bearing mainly by seal lip friction and the life-long grease fill. Fatigue-limit check: Pu 0.98 kN is the equivalent-load threshold under which the SKF adjusted-rating model credits very long life for YELAG 210-115 — most belt-driven mounted-unit loads sit comfortably under 2.792 % of C. Mass-to-load ratio for YELAG-210-115: 26.781 g of catalogue mass per rated kN of C, and 19.101 g per millimetre of bore — useful when comparing executions of the same 49.2125x90 mm envelope on the drawing. Direction rule for YELAG-210-115: the eccentric collar self-tightens in the shaft's running direction, so mark rotation at mounting; the 49.2125 mm shaft must be free of burrs under the collar or the eccentric cannot bed flat.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Overall width 62.7 mm includes collar space — a housing sized for a grub-screw insert of the same OD can be too narrow axially for the YEL collar.
• Never pin or weld the eccentric collar: the controlled eccentric friction is the locking principle, and pinning turns a demountable insert into a shaft-replacement job.
• The eccentric collar is handed to running direction; fit it wrong on the 49.2125 mm shaft and self-tightening becomes self-loosening. Mark the shaft rotation before stripping any YEL2 collar unit.
• The 35.1/23.2 kN figures belong specifically to YELAG 210-115; HV stainless, AG agricultural and VE495 zinc-plated variants of the same envelope publish derated values, so write the complete order number including suffixes on the purchase and maintenance records.