YAR-216-300-2F 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-216-300-2F model number is decoded

Listed in SKF 17000 chapter 2, YAR 216-300-2F is a grub-screw insert bearing with the inner ring extended on both sides, 76.19999999999999x140x77.8 mm overall, whose convex spherical outer ring pivots in the spherical bore of a Y-pillow, Y-flange or take-up housing. Construction follows the Y-bearing principle: a capped and flinger-protected deep-groove ball insert, inner ring elongated for the screw points, outer ring convex-spherical for the housing seat. YAR is SKF's grub-screw insert design — an inner ring extended equally past the outer ring on both sides, the screws still 120 deg apart. for inch shafts the order number carries the bore as whole-inches plus sixteenths: -300 = 76.2 mm, which is why this row sits beside, not on, the metric bore size. -2F decodes to contact seals with additional plain flingers, one set per side; the unit is grease-filled for life and the flinger is why the sealed width exceeds the open one-side execution. Envelope 76.19999999999999x140x77.8 mm (3x5.512x3.063 in), outer ring 30 mm wide, C 72.8 kN, C0 53 kN, Pu 2.16 kN. The catalogue publishes a single speed ceiling, the limiting speed: 2,400 r/min; mass 2800 g. Fillet discipline: the printed r_min 2 mm limit means shaft and housing fillets must stay under that radius; a fillet that bottoms the 76.19999999999999x140 mm insert on its chamfer tilts the whole spherical seat. Grease-life arithmetic is dominated by speed: at dn approx 2.59x10^5 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. Static-first planning: the 0.681 kN of C0 per overall-width millimetre is the figure for belt tension peaks and rotor imbalance standstill loads on the 76.19999999999999 mm shaft, not the 72.8 kN L10 value. Envelope arithmetic: the radial section from 76.19999999999999 mm bore to 140 mm OD is 31.9 mm; dividing C 72.8 kN by that section gives 2.282 kN per section millimetre, and the 77.8 mm overall width is 2.439x the section. Speed ceiling of 2,400 r/min is the catalogue mechanical limit for THIS execution; seal lip and flinger drag, not steel fatigue, are normally what cap it, so real fan duty is planned well below it. 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-216-300-2F: 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 31.9 mm radial section.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Do not specify the 76.19999999999999 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.
• 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 47.6 mm s1 dimension is the screw seating geometry inside the 47.8 mm of extended inner ring; a shaft step that crowds that side prevents the screws reaching the shaft squarely.
• Catalogue ratings belong to YAR 216-300-2F as the grub two f execution; other order numbers of the YAR 216-300 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.