YET-205-VL065 bearing: complete specifications & equivalents

The YET-205-VL065 is a ISO 15 radial bearing sized 25 x 52 x 21.5 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 = 52 mm d = 25 B = 21.5 mm side section front view
Principal dimensions: bore d 25 mm, outer diameter D 52 mm, width B 21.5 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand SKF
Bore diameter d 25 mm
Outer diameter D 52 mm
Width B 21.5 mm
Material GCr15
Seal / shield 2RS
Internal clearance CN
Tolerance class P0
Cage steel, stamped ribbon (J-type)
Basic dynamic load rating C 14 kN
Basic static load rating C0 7.8 kN
Fatigue load limit Pu 0.335 kN
Limiting speed (mechanical) 7000 rpm
Operating temperature -40 to +120 °C
Mass 200 g
Manufacturer designation YET 205/VL065
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 0.984 in
Outer diameter D 2.047 in
Width B 0.846 in
ISO bore code —
Radial section height (D−d)/2 13.5 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) 6 of 27
Bore above smallest YEL2-series size 12.3 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
YET-205 SKF full
Dimensions and internal design equivalent — standard interchange.
Same 25x52x21.5 mm ISO 15 insert-bearing envelope with catalogue ratings within 10 %; YET 205 is the eccentric collar locking, one-side-extended inner ring execution of this size — boundary dimensions interchangeable, locking/seal execution differs.
YET-205-100 SKF full
Dimensions and internal design equivalent — standard interchange.
Same 25x52x21.5 mm ISO 15 insert-bearing envelope with catalogue ratings within 10 %; YET 205-100 is the eccentric collar locking, one-side-extended inner ring execution of this size — boundary dimensions interchangeable, locking/seal execution differs. NOTE the bore differs: 25 mm vs 25.4 mm (inch-coded vs metric shaft size) — same bearing envelope, NOT interchangeable shafts.

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-205-VL065 model number is decoded

Listed in SKF 17000 chapter 2, YET 205/VL065 is a eccentric-locking-collar insert bearing with a one-side-extended inner ring, 25x52x21.5 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 205 carries the usual bore arithmetic — 25 mm — while the leading 2 marks the ISO 15 diameter series 2 sphered-OD envelope. VL065 adds zinc coating exactly where the inner ring meets the shaft and abutments; the rest of the bearing follows the standard design of the YEL2 size. Envelope 25x52x21.5 mm (0.984x2.047x0.846 in), outer ring 15 mm wide, C 14 kN, C0 7.8 kN, Pu 0.335 kN. Mounted width B1 31 mm includes the eccentric collar. The catalogue publishes a single speed ceiling, the limiting speed: 7,000 r/min; mass 200 g. Grease-life arithmetic is dominated by speed: at dn approx 2.69x10^5 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. Imperial procurement cross-check: 0.984 in bore, 2.047 in OD, 0.846 in overall width; the 200 g mass converts to 0.200 kg (7.1 oz) for the bill of materials. Fillet discipline: the printed r_min 0.6 mm limit means shaft and housing fillets must stay under that radius; a fillet that bottoms the 25x52 mm insert on its chamfer tilts the whole spherical seat. The s1 23.5 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. At the printed limiting speed of 7,000 r/min the mean diameter dm = 38.5 mm implies dn about 2.69x10^5 mm.r/min — the speed-demand figure used when comparing this insert with open deep-groove sizes of the same bore. Zinc-coated one-side collar note: the VL065 layer protects the inner-ring bore and abutment faces; the eccentric collar itself is uncoated, so grease the collar-back interface to keep the zinc-free face from corroding fast to the inner ring. Direction rule for YET-205-VL065: the eccentric collar self-tightens in the shaft's running direction, so mark rotation at mounting; the 25 mm shaft must be free of burrs under the collar or the eccentric cannot bed flat.

Typical equipment & failure modes

Common applications

  • ventilation equipment with frequent bearing changes
  • agricultural machinery PTO-driven shafts
  • tiller and cultivator rotors

Known failure patterns

  • burr or paint under the eccentric faces prevents full bite, leaving an eccentric preload that runs hot
  • collar forced on a reversing application repeatedly loads and unloads the eccentric, fretting both parts
  • pressure-greasing through the housing fitting at excessive pressure balloons the NBR seals out of their grooves
  • sphered OD and spherical housing bore left dry or painted over: the static self-aligning feature freezes solid with corrosion
  • relubricated with incompatible grease that hardens the factory fill and drags the seals

Selection pitfalls — read before you substitute

  • The eccentric collar is handed to running direction; fit it wrong on the 25 mm shaft and self-tightening becomes self-loosening. Mark the shaft rotation before stripping any YEL2 collar unit.
  • Overall width 31 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.
  • 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.
  • Catalogue ratings belong to YET 205/VL065 as the ecc one vl065 execution; other order numbers of the YET 205 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 YET-205-VL065?

The catalogue envelope is 25x52x21.5 mm with a spherical outside surface; mass 200 g. Ratings C 14/7.8 kN, Pu 0.335 kN, limiting speed 7,000 r/min.

What does the designation YET 205/VL065 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 205 carries the usual bore arithmetic — 25 mm — while the leading 2 marks the ISO 15 diameter series 2 sphered-OD envelope. VL065 adds zinc coating exactly where the inner ring meets the shaft and abutments; the rest of the bearing follows the standard design of the YEL2 size.

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.

Can eccentric-collar bearings run in both directions?

They are intended for one predominant running direction; true reversing drives can unwind the eccentric. For bidirectional or vibrating shafts choose grub-screw or SKF ConCentra (YSP) locking.

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.