YAR-215-2F 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-215-2F model number is decoded

The YAR2 series order number YAR 215-2F is a SKF insert bearing (Y-bearing) for a 75 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 130 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 215 carries the usual bore arithmetic — 75 mm (code 15 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 75x130x73.3 mm (2.953x5.118x2.886 in), outer ring 29 mm wide, C 66.3 kN, C0 49 kN, Pu 2.04 kN. The catalogue publishes a single speed ceiling, the limiting speed: 2,600 r/min; mass 2150 g. Capacity density: 66.3 kN from 2.150 kg of bearing steel is about 30.837 kN per kilogram, and per width millimetre the 73.3 mm unit carries 0.905 kN of dynamic capacity. Spherical-seat note in numbers: the 130 mm OD is ground spherical, so the self-aligning pivot happens on a circle roughly pi x 102.5 = 322.013 mm in mean circumference — keep that interface greased, because corrosion locking turns the pivot into a fixed misaligned mount. The s1 46.3 mm dimension is printed for the locking zone — the set-screw/collar seating reference — and it is verified at mounting, not recoverable from d/D/B alone. Imperial procurement cross-check: 2.953 in bore, 5.118 in OD, 2.886 in overall width; the 2150 g mass converts to 2.150 kg (75.8 oz) for the bill of materials. Inner-geometry cross-reference: the catalogue shoulder diameters (d1 92 mm) set the shaft-abutment and sleeve limits; an abutment larger than these numbers contacts the seal or the plain flinger. 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-215-2F: 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

• Do not specify the 75 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 46.3 mm s1 dimension is the screw seating geometry inside the 44.3 mm of extended inner ring; a shaft step that crowds that side prevents the screws reaching the shaft squarely.
• 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.
• Catalogue ratings belong to YAR 215-2F as the grub two f execution; other order numbers of the YAR 215 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.