YAR-205-100-2RF-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-205-100-2RF-VE495 model number is decoded

YAR 205-100-2RF/VE495 is SKF's 25.4 mm-bore grub-screw insert bearing with the inner ring extended on both sides in the YAR2 series — a Y-bearing with a spherically ground outside surface for static self-alignment inside a matching SKF Y-housing, boundary dimensions 25.4x52x34.1 mm. Wide-inner-ring deep-groove ball geometry carries the load: the extended inner ring gives the shaft grip and the seal lands, while the outer ring stays narrow and spherically ground on its outside surface. the YAR prefix names SKF grub-screw Y-bearings: two set screws in the extended inner ring lock the shaft at a 120 deg angle, and the inner ring extends symmetrically on both sides. the three-digit -100 tail codes the bore in inches for inch-shaft bearings: 1 whole inch = 25.4 mm (first digit whole inches, next two sixteenths of an inch). /VE495 is the zinc-plated food-industry execution: zinc-coated inner and outer rings, seals and flingers with stainless-steel inserts in food-compatible rubber, and food-grade grease fill. Envelope 25.4x52x34.1 mm (1x2.047x1.343 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. Bore-to-OD planning: OD 52 over bore 25.4 is a 2.047x step, while bore/overall-width gives 0.745; the spherical seat in the matching Y-housing must be specified to the 52 mm OD, not to a cylindrical housing bore. Imperial procurement cross-check: 1 in bore, 2.047 in OD, 1.343 in overall width; the 190 g mass converts to 0.190 kg (6.7 oz) for the bill of materials. 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 205-100-2RF/VE495, none interchangeable with another. Pitch-diameter arithmetic: dm = (25.4+52)/2 = 38.7 mm; at the 4,300 r/min limiting speed the ball set runs at dn approx 1.66x10^5, reduced from an open bearing mainly by seal lip friction and the life-long grease fill. Envelope arithmetic: the radial section from 25.4 mm bore to 52 mm OD is 13.3 mm; dividing C 14 kN by that section gives 1.053 kN per section millimetre, and the 34.1 mm overall width is 2.564x the section. 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 25.4 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 25.4 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 205-100-2RF/VE495 as the grub two ve495 execution; other order numbers of the YAR 205-100 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.