61900-ZZ-FAG bearing: complete specifications & equivalents

The 61900-ZZ-FAG is a ISO 15 radial bearing sized 10 x 22 x 6 mm (bore x OD x width) with ZZ 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 = 22 mm d = 10 B = 6 mm side section front view
Principal dimensions: bore d 10 mm, outer diameter D 22 mm, width B 6 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand FAG
Bore diameter d 10 mm
Outer diameter D 22 mm
Width B 6 mm
Material GCr15
Seal / shield ZZ
Internal clearance CN
Tolerance class P0
Cage steel
Basic dynamic load rating C 2.7 kN
Basic static load rating C0 1.02 kN
Reference speed (thermal) 27000 rpm
Limiting speed (mechanical) 41000 rpm
Mass 10 g
Manufacturer designation FAG 61900-2Z
Standard ISO 15
Catalog version HR 1 Rolling Bearings (Jan 2020)
Last verified 2026-09-25

Source: catalog reference (HR 1 Rolling Bearings (Jan 2020)) · extracted 2026-09-25

Parameters extracted from the official FAG Rolling Bearings catalogue (HR 1 Rolling Bearings (Jan 2020)); 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 & 61900-series range

Bore d0.394 in
Outer diameter D0.866 in
Width B0.236 in
ISO bore code00
Radial section height (D−d)/26 mm
Smallest bore in 61900-series3 mm
Largest outer diameter in 61900-series1120 mm
Width range across 61900-series3–118 mm
Bore position in 61900-series (smallest first)8 of 63
Bore above smallest 61900-series size7 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
61900-2RS-NSK NSK partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
61900-RSR NSK partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
61900-ZZ-NSK NSK partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
61900-NSK NSK partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
61900-NTN NTN partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
61900-2RS-NTN NTN partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
61900-RSR-NTN NTN partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
61900-ZZ-NTN NTN partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
61900 SKF partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
61900-2RS SKF partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
61900-ZZ SKF partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
W61900-2RS SKF partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
W61900-ZZ SKF partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.
W61900 SKF partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 10×22×6 mm envelope per ISO 15; seal variant and load ratings may differ — confirm sealing and rating before substituting.

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 61900-ZZ-FAG model number is decoded

In the 61900-series (diameter series 9 of ISO 15) the last two digits encode the bore: 61900 carries bore code 10 = 10 mm. Outside diameter 22 mm and width 6 mm come from the ISO 15 boundary-dimensions general plan. Suffix -ZZ denotes two non-contact metallic shields; they retain grease and block coarse debris but are not liquid-tight. For normal-load mounting with a rotating inner ring on a 10 mm shaft, typical catalogue practice is a j5 shaft seat with an H7 housing bore — verify against the actual load direction and magnitude. Schaeffler HR 1 catalogue order number: 61900-2Z (FAG suffix 2Z), two non-contact steel shields, mapped here from the industry-neutral -ZZ spelling.

Typical equipment & failure modes

Common applications

  • lay shafts and idler shafts
  • textile machinery
  • packaging machinery
  • space-constrained gearboxes

Known failure patterns

  • fine-particle abrasion when non-contact shields let dust past in dirty duty
  • grease aging in the shield-for-life cavity with no relubrication path
  • cage damage from operation beyond the limiting speed
  • electrical pitting in VFD-driven motors without grounding protection

Selection pitfalls — read before you substitute

  • Temperature rise and interference fits consume internal clearance on this 10 mm bore: a CN bearing on a tight, hot shaft can lose all residual clearance — size 61900 with C3 for those conditions.
  • The 619xx thin section (6.0 mm section height at 10 mm bore) trades load capacity for compactness; stiff, accurately aligned seats are essential or edge loading will spall the raceway early.
  • ZZ shields are non-contact: 61900-ZZ-FAG blocks chips and coarse dust but is not waterproof — do not install it expecting a pressure-wash seal, step up to 61900-2RS for that.
  • Do not wash 61900-ZZ-FAG in solvent before mounting: the grease inside the shielded cavity is the service fill, and solvent creeping past the shield gap strips it out.
  • Deep-groove ball bearings tolerate only minutes of misalignment; if the 22 mm housing cannot be aligned, switch to a self-aligning type rather than shimming 61900-ZZ-FAG.
  • A 10 mm bore listing showing the right d/D/B but no standard or precision-class reference may be a loose-tolerance import; measure bore/OD spread before fitting it to a machined shaft.
  • Schaeffler HR 1 lists the shielded version as 61900-2Z — FAG suffix 2Z, two non-contact steel shields. The industry-neutral page spelling is -ZZ; quote the FAG order number when buying through a Schaeffler channel.
  • The 41000 r/min mechanical limiting speed puts 61900 at the top of the HR 1 deep-groove speed range (thermal reference speed 27000 r/min); at these speeds cage design and grease shear dominate — run open with oil-mist or air-over-oil lubrication and verify the thermal reference speed for the actual load before committing.
  • At 10 mm bore the 61900 sits in Schaeffler's miniature range; HR 1 ships these sizes with a pressed steel or plastic cage and P0 tolerance as standard — for instrument or spindle accuracy order the P6/P5 variant explicitly, since P0 runout figures will not hold.
  • At 2.7 kN dynamic load rating (C) and 1.02 kN static (C0), 61900 is a light-load FAG bearing: L10 life above a few kN of equivalent load is short, so size up to a 62-series on the same bore if the duty sees shock or frequent starts.
  • At only 10 g, 61900 is a lightweight FAG bearing that can be handled by hand; still press it onto the shaft with a sleeve against the inner ring — never through the balls or outer ring.
  • The 10×22×6 mm envelope of 61900 gives a D/d ratio of 2.20 and 6.0 mm radial section height — a heavy FAG section for high-load, lower-speed duty; specifying it in a high-rpm motor generates excess heat and shortens grease life, so prefer a 62/63-series there.
  • The 2.7/1.02 kN load ratings, mass 10 g here are Schaeffler HR 1 Rolling Bearings (Jan 2020) catalogue figures for 61900-2Z on the 10×22×6 mm ISO 15 envelope; internal geometry and ratings legitimately differ between brands, so re-verify before substituting another manufacturer's 61900 in a rated drive. Where FAG has since released an X-life version of this size, its expanded C/C0 ratings supersede the HR 1 print values quoted here.
  • Schaeffler has moved many HR 1 sizes to the X-life generation with higher C/C0 ratings; the designation is unchanged, so a current eKatalog listing for 61900 may quote higher values than the HR 1 print figures on this page — the envelope is identical either way.
  • Mixing old and new FAG generations of the same designation in one arrangement is dimensionally acceptable, but where ratings matter — preloaded or matched sets — order both positions from the same generation and lot.

Frequently asked questions

What are the dimensions of a 61900-ZZ-FAG bearing?

A 61900-ZZ-FAG deep-groove ball bearing has a 10 mm bore, 22 mm outer diameter and 6 mm width (0.394 × 0.866 × 0.236 in), per ISO 15 boundary dimensions. It is fitted with two non-contact metallic shields.

Are 61900 bearings from different brands interchangeable?

For boundary dimensions, yes: every brand's 61900 uses the same ISO 15 envelope (10×22×6 mm). Load ratings, limiting speeds, clearance, precision class and sealing design can differ, so verify those in the supplier catalogue when substituting. Seal suffixes also differ by brand (2RS, DDU, LLU, 2RSL and similar).

What internal clearance does 61900-ZZ-FAG have?

Unless a clearance suffix says otherwise, 61900-ZZ-FAG is manufactured to normal (CN) radial internal clearance. Tight fits and hot shafts consume clearance in service — for those conditions order the C3 execution of 61900 and verify the residual clearance after mounting.

What is the FAG suffix for a sealed 61900?

FAG uses suffix 2RSR for the lip-contact rubber seal (catalogue number 61900-2Z), 2RZ for the non-contact rubber seal and 2Z for steel shields. The industry-neutral spellings on this page (-2RS / -RSR / -ZZ) map to those FAG suffixes while keeping the 10×22×6 mm ISO 15 envelope.

Is 61900-2Z an X-life bearing?

Many HR 1 sizes have transitioned to the X-life generation in current production; the eKatalog entry for the designation shows the present generation and its ratings. Boundary dimensions do not change between generations.

Reviewed & verified by the MPN Base engineering desk against source catalog HR 1 Rolling Bearings (Jan 2020) on 2026-09-25. Read our editorial & correction policy.