YSPAG-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 YSPAG-206-103 model number is decoded

The YSP2 series order number YSPAG 206-103 is a SKF insert bearing (Y-bearing) for a 30.162499999999998 mm (1.188 in) shaft: SKF ConCentra insert bearing with concentric stepped-sleeve locking and symmetrically extended inner ring, built to the ISO 15 diameter-series envelope with a sphered OD of 62 mm. Inside is a capped ball insert whose extended inner ring tapers onto a multi-step locking sleeve; the sleeve grips the shaft around its full circumference and the spherical outer ring pivots in the housing. YSP denotes the ConCentra design — the SB execution in this chapter has the shortened inner ring; axial driving of the stepped sleeve produces a near-true concentric clamp with virtually no run-out penalty. inch bore code -103 decodes as 1" +3/16, i.e. 30.162 mm; the metric coded size YSPAG 206 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 30.162499999999998x62x37.2 mm (1.188x2.441x1.465 in), outer ring 18 mm wide, C 19.5 kN, C0 11.2 kN, Pu 0.475 kN. The catalogue publishes a single speed ceiling, the limiting speed: 1,200 r/min; mass 300 g. At the printed limiting speed of 1,200 r/min the mean diameter dm = 46.081 mm implies dn about 0.55x10^5 mm.r/min — the speed-demand figure used when comparing this insert with open deep-groove sizes of the same bore. Speed ceiling of 1,200 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. Selection figures for YSPAG 206-103: C0/C is 0.574, Pu 0.475 kN is 2.436 % of the 19.5 kN dynamic rating, and the 300 g catalogue mass works out to roughly 9.946 g per millimetre of the 30.162499999999998 mm bore. Spherical-seat note in numbers: the 62 mm OD is ground spherical, so the self-aligning pivot happens on a circle roughly pi x 46.081 = 144.768 mm in mean circumference — keep that interface greased, because corrosion locking turns the pivot into a fixed misaligned mount. Outer-vs-overall width: the outer ring is 18 mm wide inside the 37.2 mm total, so the extended inner ring accounts for 0.516 of the overall width (9.6 mm of axial projection per side). Sleeve geometry: the ConCentra stepped sleeve occupies the symmetric extension up to the 37.2 mm overall width while the sphered outer ring stays 18 mm wide — uniform sleeve contraction is why run-out stays low at 30.162499999999998 mm bore.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The SB shortened-inner-ring ConCentra unit needs its matching mounting sleeve and procedure; substituting a standard YSP sleeve or a generic drift is the usual cause of crooked drive-up on the 30.162499999999998 mm shaft.
• Inspect the shaft before sleeve mounting: a single deep keyway burr or old screw-point dimple under the 37.2 mm-wide sleeve causes a local unclamped arc that later frets.
• ConCentra solves run-out and fretting but not gross misalignment — the housing spherical seat still carries that function; do not use the sleeve grip as an excuse to skip housing alignment.
• Catalogue ratings belong to YSPAG 206-103 as the concentra two ag execution; other order numbers of the YSPAG 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.