YAR-207-107-2RFGR-HV 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-207-107-2RFGR-HV model number is decoded

Listed in SKF 17000 chapter 2, YAR 207-107-2RFGR/HV is a grub-screw insert bearing with the inner ring extended on both sides, 36.512499999999996x72x42.9 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: -107 = 36.512 mm, which is why this row sits beside, not on, the metric bore size. HV is the corrosion-resistant food-range variant of the -2RF sealed design — stainless parts plus food-compatible rubber and lubricant, which also explains its lower published C and limiting speed. Envelope 36.512499999999996x72x42.9 mm (1.438x2.835x1.689 in), outer ring 19 mm wide, C 21.6 kN, C0 15.3 kN, Pu 0.655 kN. The catalogue publishes a single speed ceiling, the limiting speed: 3,200 r/min; mass 420 g. Pitch-diameter arithmetic: dm = (36.512499999999996+72)/2 = 54.256 mm; at the 3,200 r/min limiting speed the ball set runs at dn approx 1.74x10^5, reduced from an open bearing mainly by seal lip friction and the life-long grease fill. Spherical-seat note in numbers: the 72 mm OD is ground spherical, so the self-aligning pivot happens on a circle roughly pi x 54.256 = 170.45 mm in mean circumference — keep that interface greased, because corrosion locking turns the pivot into a fixed misaligned mount. Fatigue-limit check: Pu 0.655 kN is the equivalent-load threshold under which the SKF adjusted-rating model credits very long life for YAR 207-107-2RFGR/HV — most belt-driven mounted-unit loads sit comfortably under 3.032 % of C. Bore-to-OD planning: OD 72 over bore 36.512499999999996 is a 1.972x step, while bore/overall-width gives 0.851; the spherical seat in the matching Y-housing must be specified to the 72 mm OD, not to a cylindrical housing bore. Speed ceiling of 3,200 r/min is the catalogue mechanical limit for THIS execution; the stainless/food-grade HV fill sets this lower value, so real fan duty is planned well below it. Stainless food-range note: HV parts trade some capacity for corrosion resistance and food-compatible lubrication, and the printed limiting speed is set for that fill; do not top up with ordinary mineral grease in service — mixing greases can harden the food-grade fill and seize the seals. Set-screw geometry on this size: the two 120 deg screws bear on the 36.512499999999996 mm shaft inside the 42.9 mm total width while the outer ring is only 19 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 25.4 mm s1 dimension is the screw seating geometry inside the 23.9 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 36.512499999999996 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 21.6/15.3 kN figures belong specifically to YAR 207-107-2RFGR/HV; 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.