YET-206-103 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 YET-206-103 model number is decoded

YET 206-103 is SKF's 30.162499999999998 mm-bore eccentric-locking-collar insert bearing with a one-side-extended inner ring 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 30.162499999999998x62x23.8 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 YET 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 one side. the three-digit -103 tail codes the bore in inches for inch-shaft bearings: 1 whole inch 3/16 in = 30.162 mm (first digit whole inches, next two sixteenths of an inch). this suffix-free execution is listed without the sealed external design: the 23.8 mm width is the one-side-extended inner ring alone, so protection depends on the housing seals and the relubrication routine rather than bearing-mounted contact seals. Envelope 30.162499999999998x62x23.8 mm (1.188x2.441x0.937 in), outer ring 18 mm wide, C 19.5 kN, C0 11.2 kN, Pu 0.475 kN. Mounted width B1 35.7 mm includes the eccentric collar. The catalogue publishes a single speed ceiling, the limiting speed: 6,300 r/min; mass 320 g. The s1 26.7 mm dimension is printed for the locking zone — the set-screw/collar seating reference — and it is verified at mounting, not recoverable from d/D/B alone. Inner-geometry cross-reference: the catalogue shoulder diameters (d1 39.7 mm, d2 44.1 mm) set the shaft-abutment and sleeve limits; an abutment larger than these numbers contacts the seal or the inner flinger. Pitch-diameter arithmetic: dm = (30.162499999999998+62)/2 = 46.081 mm; at the 6,300 r/min limiting speed the ball set runs at dn approx 2.90x10^5, reduced from an open bearing mainly by seal lip friction and the life-long grease fill. Selection figures for YET 206-103: C0/C is 0.574, Pu 0.475 kN is 2.436 % of the 19.5 kN dynamic rating, and the 320 g catalogue mass works out to roughly 10.609 g per millimetre of the 30.162499999999998 mm bore. Imperial procurement cross-check: 1.188 in bore, 2.441 in OD, 0.937 in overall width; the 320 g mass converts to 0.320 kg (11.3 oz) for the bill of materials. One-side collar note: the eccentric collar mounts on the extended side only and must turn in the shaft rotation direction to self-tighten; on reversing drives this design can loosen by design intent — choose grub-screw or ConCentra locking for true bidirectional shafts. Direction rule for YET-206-103: the eccentric collar self-tightens in the shaft's running direction, so mark rotation at mounting; the 30.162499999999998 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

• The eccentric collar is handed to running direction; fit it wrong on the 30.162499999999998 mm shaft and self-tightening becomes self-loosening. Mark the shaft rotation before stripping any YEL2 collar unit.
• Overall width 35.7 mm includes collar space — a housing sized for a grub-screw insert of the same OD can be too narrow axially for the YET collar.
• 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.
• Catalogue ratings belong to YET 206-103 as the ecc one open execution; other order numbers of the YET 206-103 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.