YET-210 bearing: complete specifications & equivalents

The YET-210 is a ISO 15 radial bearing sized 50 x 90 x 30.2 mm (bore x OD x width). 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 = 50 B = 30.2 mm side section front view
Principal dimensions: bore d 50 mm, outer diameter D 90 mm, width B 30.2 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand SKF
Bore diameter d 50 mm
Outer diameter D 90 mm
Width B 30.2 mm
Material GCr15
Seal / shield open
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 740 g
Manufacturer designation YET 210
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 & YEL2-series range

Bore d 1.969 in
Outer diameter D 3.543 in
Width B 1.189 in
ISO bore code —
Radial section height (D−d)/2 20 mm
Smallest bore in YEL2-series 12.7 mm
Largest outer diameter in YEL2-series 110 mm
Width range across YEL2-series 19.1–61.9 mm
Bore position in YEL2-series (smallest first) 22 of 27
Bore above smallest YEL2-series size 37.3 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
YET ISO 15 full
Dimensions and internal design equivalent — standard interchange.
ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) 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 YET-210 model number is decoded

Listed in SKF 17000 chapter 2, YET 210 is a eccentric-locking-collar insert bearing with a one-side-extended inner ring, 50x90x30.2 mm overall, whose convex spherical outer ring pivots in the spherical bore of a Y-pillow, Y-flange or take-up housing. Construction pairs capped deep-groove geometry with a one-piece eccentric locking collar and a convex outer ring — quick to mount on plain commercial shafts and tolerant of initial static misalignment. reading YET: an eccentric locking collar does the shaft clamping (popular where shaft tolerance and quick removal matter), inner ring extended on one side. the size code 210 carries the usual bore arithmetic — 50 mm (code 10 x 5) — while the leading 2 marks the ISO 15 diameter series 2 sphered-OD envelope. the bare designation means no factory seal package: unlike the -2F executions this bearing relies on enclosure by the Y-housing and its own re-greasing path, which is why it is normally specified inside well-sealed plummer and flange units. Envelope 50x90x30.2 mm (1.969x3.543x1.189 in), outer ring 22 mm wide, C 35.1 kN, C0 23.2 kN, Pu 0.98 kN. Mounted width B1 43.7 mm includes the eccentric collar. The catalogue publishes a single speed ceiling, the limiting speed: 4,000 r/min; mass 740 g. Speed ceiling of 4,000 r/min is the catalogue mechanical limit for THIS execution; seal lip and flinger drag, not steel fatigue, are normally what cap it, so real fan duty is planned well below it. Inner-geometry cross-reference: the catalogue shoulder diameters (d1 62.5 mm, d2 67.2 mm) set the shaft-abutment and sleeve limits; an abutment larger than these numbers contacts the seal or the inner flinger. Width accounting: B1 43.7 mm covers the bearing WITH its eccentric locking collar against 30.2 mm for the bearing itself and 22 mm outer-ring width; housing axial space is drawn to B1, seal replacement space to B. The s1 32.7 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. Grease-life arithmetic is dominated by speed: at dn approx 2.80x10^5 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. 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. Collar geometry for this size: over the 22 mm outer-ring width the inner ring runs to 30.2 mm overall (43.7 mm including the eccentric collar width), giving the collar its eccentric seating face clear of the seal.

Typical equipment & failure modes

Common applications

  • one-direction conveyor drives
  • agricultural machinery PTO-driven shafts
  • ventilation equipment with frequent bearing changes

Known failure patterns

  • eccentric collar mounted against rotation direction works loose and spins, fretting the shaft
  • collar forced on a reversing application repeatedly loads and unloads the eccentric, fretting both parts
  • 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
  • misalignment beyond the static seat capability loads the seals continuously, wearing one lip through in weeks

Selection pitfalls — read before you substitute

  • Overall width 43.7 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.
  • The eccentric collar is handed to running direction; fit it wrong on the 50 mm shaft and self-tightening becomes self-loosening. Mark the shaft rotation before stripping any YEL2 collar unit.
  • 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.
  • The 35.1/23.2 kN figures belong specifically to YET 210; 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.

Frequently asked questions

What are the dimensions and catalogue data of YET-210?

The catalogue envelope is 50x90x30.2 mm with a spherical outside surface; mass 740 g. Ratings C 35.1/23.2 kN, Pu 0.98 kN, limiting speed 4,000 r/min.

What does the designation YET 210 mean?

reading YET: an eccentric locking collar does the shaft clamping (popular where shaft tolerance and quick removal matter), inner ring extended on one side. the size code 210 carries the usual bore arithmetic — 50 mm (code 10 x 5) — while the leading 2 marks the ISO 15 diameter series 2 sphered-OD envelope. the bare designation means no factory seal package: unlike the -2F executions this bearing relies on enclosure by the Y-housing and its own re-greasing path, which is why it is normally specified inside well-sealed plummer and flange units.

Why is the collar sometimes wider than the bearing (B1)?

The B1 dimension includes the eccentric collar's axial width, so the housing needs that extra space beside the bearing. Draw housings to B1, not B, when replacing a grub-screw unit with a collar unit.

What is the difference between YET and YEL?

YET has the inner ring extended on one side; YEL extends it on both sides. Both lock with the eccentric collar and share bore/OD geometry; the sealed -2F executions sit in the YEL listings.

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.