RNAO22X30X13-XL bearing: complete specifications & equivalents

The RNAO22X30X13-XL is a ISO 15 radial bearing sized 22 x 30 x 13 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 = 30 mm d = 22 B = 13 mm side section front view
Principal dimensions: bore d 22 mm, outer diameter D 30 mm, width B 13 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand FAG
Bore diameter d 22 mm
Outer diameter D 30 mm
Width B 13 mm
Material GCr15
Seal / shield open
Internal clearance CN
Tolerance class P0
Cage steel
Basic dynamic load rating C 11.8 kN
Basic static load rating C0 15.9 kN
Fatigue load limit Pu 2.6 kN
Reference speed (thermal) 12400 rpm
Limiting speed (mechanical) 20400 rpm
Operating temperature -40 to +120 °C
Mass 27 g
Manufacturer designation RNAO22×30×13-XL
Standard ISO 15
Catalog version HR1 2026-09-25
Last verified 2026-09-30

Source: catalog reference (HR1 2026-09-25) · extracted 2026-09-30

Parameters extracted from the official FAG Rolling Bearings catalogue (HR1 2026-09-25); FAG® is a trademark of Schaeffler Technologies AG & Co. KG, used here for identification only — mpnbase is not an authorized FAG/Schaeffler distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at schaeffler.com.

Dimensions in inches & rnao-series range

Bore d 0.866 in
Outer diameter D 1.181 in
Width B 0.512 in
ISO bore code —
Radial section height (D−d)/2 4 mm
Smallest bore in rnao-series 5 mm
Largest outer diameter in rnao-series 120 mm
Width range across rnao-series 8–40 mm
Bore position in rnao-series (smallest first) 12 of 25
Bore above smallest rnao-series size 17 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
RNAO22X30X13 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 RNAO22X30X13-XL model number is decoded

envelope 22×30×13 mm: 22 mm seat is the hardened and ground shaft journal itself — there is no inner ring, with a thin 4.0 mm radial section packed with small-diameter needle rollers C is 11.8 kN and C0 15.9 kN at the 22 mm seat; the C/C0 ratio of 0.74 is characteristic of a needle bearing — high static rating relative to dynamic in a compact 30 mm outside diameter the fatigue load limit Cur is 2.6 kN, the limiting speed 20,400 r/min and the thermal reference speed 12,400 r/min; for small needle bearings the reference speed can exceed the kinematic limit, so the lower of the two governs the application dynamic capacity per millimetre of bore is 0.54 kN/mm and per millimetre of width 0.91 kN/mm — the reason 13 mm-wide needle bearings routinely replace much larger ball or roller positions mass is 27 g, just 0.07 g per mm² of projected 30×13 mm envelope, which keeps unbalanced forces low in fast-actuating linkages the 22 mm bore falls in the small band, the workhorse size for gearbox planetary positions, hydraulic pumps and general cam and linkage duty Reading RNAO: O denotes the ribless (open-sided) race design; the single roller row runs directly between ground shaft and housing bore X-life status (-XL) indicates the current Schaeffler premium execution at 22 mm bore; the 15.9 kN C0 rating reflects the improved rolling-contact geometry. Typical applications include gearbox selector and change linkages, planetary gear bearings and copying and printing machine mechanisms, where the 30 mm outside diameter and 11.8 kN dynamic rating match the duty. In gearbox selector and change linkages the unit fits a compact 22 mm seat, and in planetary gear bearings the 27 g mass keeps unbalanced forces low in fast linkages. Designers also specify it for copying and printing machine mechanisms, relying on the 13 mm width and the published 15.9 kN static rating. Do not press an RNA/NK assembly in through the outer ring when mounting it on a shaft, and vice versa — rolling forces through the wrong ring bruises the raceways. Without an inner ring the shaft is the raceway: 58–64 HRC and a ground, polished journal are mandatory, not recommendations.

Typical equipment & failure modes

Common applications

  • hydraulic and pneumatic pump eccentrics
  • small electric motor accessory drives
  • agricultural machine pivots and linkages
  • textile machine heald and cam shafts

Known failure patterns

  • journal brinelling when a no-inner-ring bearing runs on a shaft hardened below 58 HRC or finished too rough
  • needle skewing and jamming after momentary unloading of a flangeless (RNAO/NAO) pack
  • raceway pitting from contamination drawn through the open ends of an unsealed bearing
  • edge loading at the roller ends from a tapered or lobed shaft seat
  • cage damage from shock loading or from pressing the bearing through the wrong ring
  • lubricant starvation on fast reciprocating strokes that never fully rotate the needles
  • false brinelling during stationary transport vibration
  • spalling from excessive interference that removes the radial clearance
  • roller wear from misaligned connecting-rod eyes and rocker bores

Selection pitfalls — read before you substitute

  • Do not press an RNA/NK assembly in through the outer ring when mounting it on a shaft, and vice versa — rolling forces through the wrong ring bruises the raceways.
  • Without an inner ring the shaft is the raceway: 58–64 HRC and a ground, polished journal are mandatory, not recommendations.
  • On reciprocating duty ensure the stroke rotates the full needle set, or brinelling occurs at the same roller positions.

Frequently asked questions

What are the dimensions of the RNAO22×30×13-XL?

The RNAO22×30×13-XL is a RNAO flangeless needle roller bearing without inner ring with 30 mm outside diameter, 22 mm bore and 13 mm width, envelope 22×30×13 mm. Mass is 27 g.

What does the RNAO22×30×13-XL designation mean in the FAG/INA HR1 catalogue?

RNAO22×30×13-XL identifies this RNAO flangeless needle roller bearing without inner ring in the Schaeffler HR1 rolling bearings catalogue; the -XL suffix marks the X-life execution. The envelope is 22×30×13 mm and the catalogue ratings are C 11.8 kN, C0 15.9 kN, Cur 2.6 kN.

What is the load capacity of the RNAO22×30×13-XL?

The basic dynamic load rating C is 11.8 kN and the basic static load rating C0 is 15.9 kN; the fatigue load limit Cur is 2.6 kN.

What is the maximum speed of the RNAO22×30×13-XL?

The limiting speed is 20,400 r/min and the thermal reference speed is 12,400 r/min. In the Schaeffler catalogue the reference speed is the thermally permissible running speed under defined load; the lower of the two values governs each application.

Can the RNAO22×30×13-XL run directly on an ordinary shaft?

Not on a soft shaft. The RNAO22×30×13-XL has no inner ring, so the 22 mm journal itself is the raceway: harden it to 58–64 HRC and finish-grind to the catalogue journal tolerance. Where the shaft cannot be hardened, use the corresponding with-inner-ring execution instead.

Reviewed & verified by the MPN Base engineering desk against source catalog HR1 2026-09-25 on 2026-09-30. Read our editorial & correction policy.