YELAG-207-106 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-207-106 model number is decoded

The YEL2 series order number YELAG 207-106 is a SKF insert bearing (Y-bearing) for a 34.925 mm (1.375 in) shaft: eccentric-locking-collar insert bearing with the inner ring extended on both sides, built to the ISO 15 diameter-series envelope with a sphered OD of 72 mm. Inside sits a sealed ball insert with an eccentric collar on the extended ring: collar bite locks the shaft, the contact seals retain the life grease, and the spherical OD floats in the Y-housing. YEL means collar locking instead of grub screws — fit the eccentric collar, turn it in the rotation direction until it grips, then lock the collar's own setscrew; the inner ring is extended on both sides. inch bore code -106 decodes as 1" +6/16, i.e. 34.925 mm; the metric coded size YELAG 207 shares the same envelope but its bore is the metric value, not this one. the AG suffix identifies the farm-duty variant of the range: sealed and flinger-protected for chaff and dust, with the catalogue deliberately derating its permissible speed versus the industrial execution. Envelope 34.925x72x37.6 mm (1.375x2.835x1.48 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 540 g. Inner-geometry cross-reference: the catalogue shoulder diameters (d1 46.1 mm, d2 51.1 mm) set the shaft-abutment and sleeve limits; an abutment larger than these numbers contacts the seal or the inner flinger. 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. 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. 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 34.925 mm shaft, not the 25.5 kN L10 value. Selection figures for YELAG 207-106: C0/C is 0.6, Pu 0.655 kN is 2.569 % of the 25.5 kN dynamic rating, and the 540 g catalogue mass works out to roughly 15.462 g per millimetre of the 34.925 mm bore. Collar geometry for this size: over the 19 mm outer-ring width the inner ring runs to 37.6 mm overall (51.1 mm including the eccentric collar width), giving the collar its eccentric seating face clear of the seal.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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 eccentric collar is handed to running direction; fit it wrong on the 34.925 mm shaft and self-tightening becomes self-loosening. Mark the shaft rotation before stripping any YEL2 collar unit.
• 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.
• Ordering discipline for the 34.925 mm size: the chapter lists several executions side by side (YEL2 locking style x seal package x application variant); a bare-number substitution needs a fresh dimension, speed and rating check rather than a like-for-like assumption.