YAR-214-2F 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-214-2F model number is decoded

The YAR2 series order number YAR 214-2F is a SKF insert bearing (Y-bearing) for a 70 mm 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 125 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. the size code 214 carries the usual bore arithmetic — 70 mm (code 14 x 5) — while the leading 2 marks the ISO 15 diameter series 2 sphered-OD envelope. the -2F external design pairs a nitrile contact seal with a plain sheet-steel thrower on both sides — a two-stage exclusion chain of flinger first, sealing lip second, typical of farm and conveyor duty. Envelope 70x125x69.9 mm (2.756x4.921x2.752 in), outer ring 28 mm wide, C 62.4 kN, C0 45 kN, Pu 1.86 kN. The catalogue publishes a single speed ceiling, the limiting speed: 2,800 r/min; mass 1950 g. Pitch-diameter arithmetic: dm = (70+125)/2 = 97.5 mm; at the 2,800 r/min limiting speed the ball set runs at dn approx 2.73x10^5, reduced from an open bearing mainly by seal lip friction and the life-long grease fill. Capacity density: 62.4 kN from 1.950 kg of bearing steel is about 32 kN per kilogram, and per width millimetre the 69.9 mm unit carries 0.893 kN of dynamic capacity. Bore-to-OD planning: OD 125 over bore 70 is a 1.786x step, while bore/overall-width gives 1.001; the spherical seat in the matching Y-housing must be specified to the 125 mm OD, not to a cylindrical housing bore. Fillet discipline: the printed r_min 1.5 mm limit means shaft and housing fillets must stay under that radius; a fillet that bottoms the 70x125 mm insert on its chamfer tilts the whole spherical seat. At the printed limiting speed of 2,800 r/min the mean diameter dm = 97.5 mm implies dn about 2.73x10^5 mm.r/min — the speed-demand figure used when comparing this insert with open deep-groove sizes of the same bore. Both-sides sealed order-number note: the two set screws clamp through dimpled recesses in the extended inner ring; tighten alternately to the catalogue procedure and retighten after the first run-in period, because the -2F flingers keep dust out but cannot compensate for a screw that walked loose. Service tip for YAR-214-2F: 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 27.5 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.
• The 39.7 mm s1 dimension is the screw seating geometry inside the 41.9 mm of extended inner ring; a shaft step that crowds that side prevents the screws reaching the shaft squarely.
• Do not specify the 70 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.
• Ordering discipline for the 70 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.