YSP-210-115-SB-2F 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 YSP-210-115-SB-2F model number is decoded

Listed in SKF 17000 chapter 2, YSP 210-115 SB-2F is a SKF ConCentra insert bearing with concentric stepped-sleeve locking and symmetrically extended inner ring, 49.2125x90x46.2 mm overall, whose convex spherical outer ring pivots in the spherical bore of a Y-pillow, Y-flange or take-up housing. Construction is a sealed deep-groove insert, a symmetrically extended inner ring and the stepped ConCentra sleeve — uniform grip, minimal run-out, no shaft damage from screw points or an eccentric mass. reading YSP: SKF ConCentra technology locks the shaft through a stepped sleeve that contracts uniformly, chosen for high run-out accuracy and for shafts that must not be marked by screw points or an eccentric. for inch shafts the order number carries the bore as whole-inches plus sixteenths: -115 = 49.212 mm, which is why this row sits beside, not on, the metric bore size. -2F decodes to contact seals with additional plain flingers, one set per side; the unit is grease-filled for life and the flinger is why the sealed width exceeds the open one-side execution. Envelope 49.2125x90x46.2 mm (1.938x3.543x1.819 in), outer ring 22 mm wide, C 35.1 kN, C0 23.2 kN, Pu 0.98 kN. The catalogue publishes a single speed ceiling, the limiting speed: 4,000 r/min; mass 760 g. Grease-life arithmetic is dominated by speed: at dn approx 2.78x10^5 the sealed-for-life fill is planned for the catalogue's grease-life regime, which is why the limiting speed and the relubrication interval move together, and high-temperature mounts shorten both even when load is light. Fillet discipline: the printed minimum-fillet limit means shaft and housing fillets must stay under that radius; a fillet that bottoms the 49.2125x90 mm insert on its chamfer tilts the whole spherical seat. Load balance for documentation: C0 23.2 kN against C 35.1 kN gives a 0.661 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. Mass-to-load ratio for YSP-210-115-SB-2F: 21.652 g of catalogue mass per rated kN of C, and 15.443 g per millimetre of bore — useful when comparing executions of the same 49.2125x90 mm envelope on the drawing. Selection figures for YSP 210-115 SB-2F: C0/C is 0.661, Pu 0.98 kN is 2.792 % of the 35.1 kN dynamic rating, and the 760 g catalogue mass works out to roughly 15.443 g per millimetre of the 49.2125 mm bore. ConCentra mounting note: the SB shortened-inner-ring sleeve is driven AXIALLY with the proper sleeve/drift until it seats against the abutment — driving at an angle burrs the stepped sleeve and destroys the concentricity advantage; removal needs the matching withdrawal technique, never a puller on the flingers. Reuse note for YSP-210-115-SB-2F: the stepped locking sleeve is a one-time clamping component in most over-torque cases; if the 49.2125 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

• 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 49.2125 mm shaft.
• Inspect the shaft before sleeve mounting: a single deep keyway burr or old screw-point dimple under the 46.2 mm-wide sleeve causes a local unclamped arc that later frets.
• Ordering discipline for the 49.2125 mm size: the chapter lists several executions side by side (YSP2 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.