YAR-205-2RF-VE495 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-205-2RF-VE495 model number is decoded

The YAR2 series order number YAR 205-2RF/VE495 is a SKF insert bearing (Y-bearing) for a 25 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 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. the size code 205 carries the usual bore arithmetic — 25 mm — while the leading 2 marks the ISO 15 diameter series 2 sphered-OD envelope. the VE495 suffix packages zinc-coated rings with stainless-reinforced food-grade seals/flingers and food-grade lubricant — the wash-down-resistant counterpart of the standard -2RF bearing. Envelope 25x52x34.1 mm (0.984x2.047x1.343 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: 4,300 r/min; mass 190 g. Spherical-seat note in numbers: the 52 mm OD is ground spherical, so the self-aligning pivot happens on a circle roughly pi x 38.5 = 120.951 mm in mean circumference — keep that interface greased, because corrosion locking turns the pivot into a fixed misaligned mount. Bore-to-OD planning: OD 52 over bore 25 is a 2.08x step, while bore/overall-width gives 0.733; the spherical seat in the matching Y-housing must be specified to the 52 mm OD, not to a cylindrical housing bore. Rating split for the maintenance file: dynamic 14 kN (L10), static 7.8 kN (s0 shock check), fatigue 0.335 kN (adjusted life) — three separate uses for YAR 205-2RF/VE495, none interchangeable with another. Envelope arithmetic: the radial section from 25 mm bore to 52 mm OD is 13.5 mm; dividing C 14 kN by that section gives 1.037 kN per section millimetre, and the 34.1 mm overall width is 2.526x the section. 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. Zinc-coated food-range note: the VE495 plating is a functional surface, not cosmetic; clean the bore and shaft WITHOUT steel brushes or aggressive descalers, mount dry or with the approved food-grade mounting paste, and touch up damaged plating spots before commissioning the wash-down area. Set-screw geometry on this size: the two 120 deg screws bear on the 25 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

• Do not specify the 25 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 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.
• Catalogue ratings belong to YAR 205-2RF/VE495 as the grub two ve495 execution; other order numbers of the YAR 205 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.