YELAG-207-107 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 YELAG-207-107 model number is decoded

YELAG 207-107 is SKF's 36.512499999999996 mm-bore eccentric-locking-collar insert bearing with the inner ring extended on both sides in the YEL2 series — a Y-bearing with a spherically ground outside surface for static self-alignment inside a matching SKF Y-housing, boundary dimensions 36.512499999999996x72x37.6 mm. The deep-groove ball set is built into an extended inner ring carrying a separate eccentric locking collar; turning the collar against its eccentric seat pinches the shaft, and the sphered outer ring self-aligns in the housing. the YEL prefix identifies the eccentric-locking-collar design: a separate eccentric collar turns against a matching eccentric on the extended inner ring to pinch the shaft, extended both sides. the three-digit -107 tail codes the bore in inches for inch-shaft bearings: 1 whole inch 7/16 in = 36.512 mm (first digit whole inches, next two sixteenths of an inch). AG marks the agricultural-machinery application execution, built on the sealed both-sides-extended geometry and tuned for the low-speed, shock-laden duty of harvesters, balers and spreaders — note the catalogue prints a much reduced limiting speed for this variant. Envelope 36.512499999999996x72x37.6 mm (1.438x2.835x1.48 in), outer ring 19 mm wide, C 25.5 kN, C0 15.3 kN, Pu 0.655 kN. Mounted width B1 51.1 mm includes the eccentric collar. The catalogue publishes a single speed ceiling, the limiting speed: 1,100 r/min; mass 500 g. Speed ceiling of 1,100 r/min is the catalogue mechanical limit for THIS execution; the AG agricultural derate is deliberate, so real fan duty is planned well below it. Pitch-diameter arithmetic: dm = (36.512499999999996+72)/2 = 54.256 mm; at the 1,100 r/min limiting speed the ball set runs at dn approx 0.60x10^5, reduced from an open bearing mainly by seal lip friction and the life-long grease fill. Mass-to-load ratio for YELAG-207-107: 19.608 g of catalogue mass per rated kN of C, and 13.694 g per millimetre of bore — useful when comparing executions of the same 36.512499999999996x72 mm envelope on the drawing. Static-first planning: the 0.407 kN of C0 per overall-width millimetre is the figure for belt tension peaks and rotor imbalance standstill loads on the 36.512499999999996 mm shaft, not the 25.5 kN L10 value. Width accounting: B1 51.1 mm covers the bearing WITH its eccentric locking collar against 37.6 mm for the bearing itself and 19 mm outer-ring width; housing axial space is drawn to B1, seal replacement space to B. Direction rule for YELAG-207-107: the eccentric collar self-tightens in the shaft's running direction, so mark rotation at mounting; the 36.512499999999996 mm shaft must be free of burrs under the collar or the eccentric cannot bed flat.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Overall width 51.1 mm includes collar space — a housing sized for a grub-screw insert of the same OD can be too narrow axially for the YEL collar.
• The eccentric collar is handed to running direction; fit it wrong on the 36.512499999999996 mm shaft and self-tightening becomes self-loosening. Mark the shaft rotation before stripping any YEL2 collar unit.
• Never pin or weld the eccentric collar: the controlled eccentric friction is the locking principle, and pinning turns a demountable insert into a shaft-replacement job.
• The 25.5/15.3 kN figures belong specifically to YELAG 207-107; 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.