YSPAG-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 YSPAG-207-106 model number is decoded

The YSP2 series order number YSPAG 207-106 is a SKF insert bearing (Y-bearing) for a 34.925 mm (1.375 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 72 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 -106 decodes as 1" +6/16, i.e. 34.925 mm; the metric coded size YSPAG 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 34.925x72x39.7 mm (1.375x2.835x1.563 in), outer ring 19 mm wide, C 25.5 kN, C0 15.3 kN, Pu 0.655 kN. The catalogue publishes a single speed ceiling, the limiting speed: 1,100 r/min; mass 440 g. Load balance for documentation: C0 15.3 kN against C 25.5 kN gives a 0.6 ratio; mounted-unit positions with shock and standstill loading are normally checked on C0, while conveyor and fan duty are evaluated on the L10 figure. Selection figures for YSPAG 207-106: C0/C is 0.6, Pu 0.655 kN is 2.569 % of the 25.5 kN dynamic rating, and the 440 g catalogue mass works out to roughly 12.598 g per millimetre of the 34.925 mm bore. Static-first planning: the 0.385 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. Pitch-diameter arithmetic: dm = (34.925+72)/2 = 53.462 mm; at the 1,100 r/min limiting speed the ball set runs at dn approx 0.59x10^5, reduced from an open bearing mainly by seal lip friction and the life-long grease fill. Rating split for the maintenance file: dynamic 25.5 kN (L10), static 15.3 kN (s0 shock check), fatigue 0.655 kN (adjusted life) — three separate uses for YSPAG 207-106, none interchangeable with another. Reuse note for YSPAG-207-106: the stepped locking sleeve is a one-time clamping component in most over-torque cases; if the 34.925 mm shaft shows a polished sleeve imprint after withdrawal, fit a new sleeve rather than re-driving the old one.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Inspect the shaft before sleeve mounting: a single deep keyway burr or old screw-point dimple under the 39.7 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.
• 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 34.925 mm shaft.
• The 25.5/15.3 kN figures belong specifically to YSPAG 207-106; 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.