YAR-205-015-2F 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-205-015-2F model number is decoded

The YAR2 series order number YAR 205-015-2F is a SKF insert bearing (Y-bearing) for a 23.8125 mm (0.938 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 52 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 -015 decodes as 0" +15/16, i.e. 23.813 mm; the metric coded size YAR 205 shares the same envelope but its bore is the metric value, not this one. 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 23.8125x52x34.1 mm (0.938x2.047x1.343 in), outer ring 15 mm wide, C 14 kN, C0 7.8 kN, Pu 0.335 kN. The catalogue publishes a single speed ceiling, the limiting speed: 7,000 r/min; mass 200 g. Load balance for documentation: C0 7.8 kN against C 14 kN gives a 0.557 ratio; mounted-unit positions with shock and standstill loading are normally checked on C0, while conveyor and fan duty are evaluated on the L10 figure. Envelope arithmetic: the radial section from 23.8125 mm bore to 52 mm OD is 14.094 mm; dividing C 14 kN by that section gives 0.993 kN per section millimetre, and the 34.1 mm overall width is 2.42x the section. Grease-life arithmetic is dominated by speed: at dn approx 2.65x10^5 the sealed-for-life fill is planned for the catalogue's grease-life regime, which is why the limiting speed and the relubrication interval move together, and high-temperature mounts shorten both even when load is light. Pitch-diameter arithmetic: dm = (23.8125+52)/2 = 37.906 mm; at the 7,000 r/min limiting speed the ball set runs at dn approx 2.65x10^5, reduced from an open bearing mainly by seal lip friction and the life-long grease fill. Imperial procurement cross-check: 0.938 in bore, 2.047 in OD, 1.343 in overall width; the 200 g mass converts to 0.200 kg (7.1 oz) for the bill of materials. 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. Set-screw geometry on this size: the two 120 deg screws bear on the 23.8125 mm shaft inside the 34.1 mm total width while the outer ring is only 15 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

• The 19.8 mm s1 dimension is the screw seating geometry inside the 19.1 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.
• Do not specify the 23.8125 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 14/7.8 kN figures belong specifically to YAR 205-015-2F; 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.