YAR-210-115-2RF-HV 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 YAR-210-115-2RF-HV model number is decoded

The YAR2 series order number YAR 210-115-2RF/HV is a SKF insert bearing (Y-bearing) for a 49.2125 mm (1.938 in) shaft: grub-screw 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 is a sealed deep-groove ball set with an extended inner ring, two set screws 120 deg apart doing the shaft locking, and the sphered outer ring providing the unit's static alignment pivot. reading the YAR basic designation: set-screw shaft locking with the screws spaced 120 deg apart; YAR carries the symmetric, both-sides-extended inner ring. inch bore code -115 decodes as 1" +15/16, i.e. 49.212 mm; the metric coded size YAR 210 shares the same envelope but its bore is the metric value, not this one. the HV suffix means stainless rings and balls with food-grade compliant seals and grease; capacity is derated versus the carbon-steel part. Envelope 49.2125x90x51.6 mm (1.938x3.543x2.031 in), outer ring 22 mm wide, C 29.6 kN, C0 23.2 kN, Pu 0.98 kN. The catalogue publishes a single speed ceiling, the limiting speed: 2,200 r/min; mass 790 g. At the printed limiting speed of 2,200 r/min the mean diameter dm = 69.606 mm implies dn about 1.53x10^5 mm.r/min — the speed-demand figure used when comparing this insert with open deep-groove sizes of the same bore. Bore-to-OD planning: OD 90 over bore 49.2125 is a 1.829x step, while bore/overall-width gives 0.954; the spherical seat in the matching Y-housing must be specified to the 90 mm OD, not to a cylindrical housing bore. Imperial procurement cross-check: 1.938 in bore, 3.543 in OD, 2.031 in overall width; the 790 g mass converts to 0.790 kg (27.9 oz) for the bill of materials. Fillet discipline: the printed r_min 1 mm limit means shaft and housing fillets must stay under that radius; a fillet that bottoms the 49.2125x90 mm insert on its chamfer tilts the whole spherical seat. Capacity density: 29.6 kN from 0.790 kg of bearing steel is about 37.468 kN per kilogram, and per width millimetre the 51.6 mm unit carries 0.574 kN of dynamic capacity. Stainless food-range note: HV parts trade some capacity for corrosion resistance and food-compatible lubrication, and the printed limiting speed is set for that fill; do not top up with ordinary mineral grease in service — mixing greases can harden the food-grade fill and seize the seals. Service tip for YAR-210-115-2RF-HV: dimpled or drilled shaft spots under the screw points are sometimes specified on shock duty, but the standard mounting relies on point indentation alone — never substitute longer screws that reach the 20.394 mm radial section.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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.
• Do not specify the 49.2125 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.
• 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.
• Ordering discipline for the 49.2125 mm size: the chapter lists several executions side by side (YAR2 locking style x seal package x application variant); a bare-number substitution needs a fresh dimension, speed and rating check rather than a like-for-like assumption.