YSA-210-2FK-HA-2310 bearing: complete specifications & equivalents

The YSA-210-2FK-HA-2310 is a ISO 15 radial bearing sized 42.862 x 90 x 37 mm (bore x OD x width) with 2RS sealing. Verify dimensions against the official catalog before ordering.

Bearing dimension schematic Front view shows outer diameter D and bore d; side section shows width B. D = 90 mm d = 42.862 B = 37 mm side section front view
Principal dimensions: bore d 42.862 mm, outer diameter D 90 mm, width B 37 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand SKF
Bore diameter d 42.862 mm
Outer diameter D 90 mm
Width B 37 mm
Material GCr15
Seal / shield 2RS
Internal clearance CN
Tolerance class P0
Cage steel, stamped ribbon (J-type)
Basic dynamic load rating C 35.1 kN
Basic static load rating C0 23.2 kN
Fatigue load limit Pu 0.98 kN
Limiting speed (mechanical) 4000 rpm
Operating temperature -40 to +120 °C
Mass 1050 g
Manufacturer designation YSA 210-2FK HA 2310
Standard ISO 15
Catalog version SKF PUB BU/P1 17000/1 EN (Oct 2018)
Last verified 2026-09-28

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.

Dimensions in inches & YSA2-series range

Bore d 1.687 in
Outer diameter D 3.543 in
Width B 1.457 in
ISO bore code —
Radial section height (D−d)/2 23.6 mm
Smallest bore in YSA2-series 19.05 mm
Largest outer diameter in YSA2-series 120 mm
Width range across YSA2-series 24–43.5 mm
Bore position in YSA2-series (smallest first) 13 of 22
Bore above smallest YSA2-series size 23.812 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
YSA ISO 15 verify
Commonly quoted cross reference; confirm against the target catalog before ordering.
ISO 15 boundary-dimension envelope; seal suffix convention varies by brand (2RS / DDU / LLU / 2RSR) — verify seal design and temperature range. Brand-specific OEM equivalents pending multi-source data.

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 YSA-210-2FK-HA-2310 model number is decoded

Listed in SKF 17000 chapter 2, YSA 210-2FK HA 2310 is a tapered-bore (1:12) insert bearing supplied on its HA 2310 adapter sleeve, 42.862x90x37 mm overall, whose convex spherical outer ring pivots in the spherical bore of a Y-pillow, Y-flange or take-up housing. Construction combines capped deep-groove geometry, a tapered inner-ring bore and the supplied adapter sleeve with locknut seating — factory-grade concentricity on plain drawn shafting. YSA is the adapter-sleeve member of the Y range — tapered bore plus the HA 2310 sleeve converts a plain commercial shaft into a precisely located, demountable seat at 42.862 mm. adapter mounting means the effective bore is the sleeve bore: HA 2310 gives the 42.862 mm shaft fit with no machined shoulder required. -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 42.862x90x37 mm (1.687x3.543x1.457 in), outer ring 22 mm wide, C 35.1 kN, C0 23.2 kN, Pu 0.98 kN. Mounted width B1 55 mm includes the adapter sleeve. Supplied/specified with HA 2310. The catalogue publishes a single speed ceiling, the limiting speed: 4,000 r/min; mass 1050 g. Mass-to-load ratio for YSA-210-2FK-HA-2310: 29.915 g of catalogue mass per rated kN of C, and 24.497 g per millimetre of bore — useful when comparing executions of the same 42.862x90 mm envelope on the drawing. Rating split for the maintenance file: dynamic 35.1 kN (L10), static 23.2 kN (s0 shock check), fatigue 0.98 kN (adjusted life) — three separate uses for YSA 210-2FK HA 2310, none interchangeable with another. 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. Bore-to-OD planning: OD 90 over bore 42.862 is a 2.1x step, while bore/overall-width gives 1.158; the spherical seat in the matching Y-housing must be specified to the 90 mm OD, not to a cylindrical housing bore. Width accounting: B1 55 mm covers the bearing WITH its adapter-sleeve hardware against 37 mm for the bearing itself and 22 mm outer-ring width; housing axial space is drawn to B1, seal replacement space to B. Adapter-sleeve note: tighten the sleeve locknut to the catalogue axial drive-up (s1 is printed as the starting distance before the sleeve is driven into the tapered bore); under-tightening lets the inner ring creep, over-tightening eliminates internal clearance and preloads the balls hot. Mounting sequence for YSA-210-2FK-HA-2310: slide HA 2310 on first, seat the bearing in the housing register, then draw the nut to drive-up — reversing the order (sleeve fully tightened before housing engagement) locks in misalignment the sphered seat cannot cure.

Typical equipment & failure modes

Common applications

  • ventilation equipment with long through-shafts
  • conveyor positions needing easy removal without shaft damage
  • fan and blower shafts of plain commercial steel

Known failure patterns

  • sleeve over-tightened: internal clearance vanishes and the bearing runs hot from the first hours
  • sleeve under-tightened: the tapered inner ring creeps on the sleeve and polishes the taper bright
  • relubricated with incompatible grease that hardens the factory fill and drags the seals
  • sphered OD and spherical housing bore left dry or painted over: the static self-aligning feature freezes solid with corrosion
  • pressure-greasing through the housing fitting at excessive pressure balloons the NBR seals out of their grooves

Selection pitfalls — read before you substitute

  • The order number is incomplete without the sleeve: YSA-210-2FK-HA-2310 specifies the HA 2310 adapter as part of the article; quoting only the YSA bearing risks delivery of a sleeve-less tapered bore that cannot mount.
  • Sleeve drive-up uses the printed s1 31.1 mm starting distance, not a torque value guessed from locknut size; re-measure the residual gap after tightening rather than trusting feel.
  • Plain-shaft advantage is also its trap: with no shoulders, axial location comes entirely from the sleeve/nut reaction — the abutment behind the sleeve must be square and present.
  • Catalogue ratings belong to YSA 210-2FK HA 2310 as the adapter two f execution; other order numbers of the YSA 210-2FK 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.

Frequently asked questions

What are the dimensions and catalogue data of YSA-210-2FK-HA-2310?

The catalogue envelope is 42.862x90x37 mm with a spherical outside surface; mass 1050 g. Ratings C 35.1/23.2 kN, Pu 0.98 kN, limiting speed 4,000 r/min.

What does the designation YSA 210-2FK HA 2310 mean?

YSA is the adapter-sleeve member of the Y range — tapered bore plus the HA 2310 sleeve converts a plain commercial shaft into a precisely located, demountable seat at 42.862 mm. adapter mounting means the effective bore is the sleeve bore: HA 2310 gives the 42.862 mm shaft fit with no machined shoulder required. -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.

What shaft preparation is needed?

A plain commercial shaft in the recommended tolerance, clean and free of burrs, with a light abutment for the sleeve face. No shoulders, dimples or collar space are required — that is the main advantage of adapter mounting.

How tight should the adapter sleeve be?

Drive-up is controlled by the printed axial procedure using the s1 starting distance (31.1 mm for this size). Too loose creeps; too tight removes internal clearance and overheats the ball set. Secure the locknut when finished.

Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-28. Read our editorial & correction policy.