SKF to FULI Bearing Cross Reference Chart

This chart lists SKF deep groove ball bearing numbers in the 6000, 6200 and 6300 series next to the FULI number with the same boundary dimensions. SKF writes shields as 2Z, contact seals as 2RSH or 2RS1 and clearance as /C3. FULI writes the same features as ZZ, 2RS and C3.

How SKF suffixes map to FULI

SKF suffix	SKF meaning (SKF designation system)	FULI
-2Z	Shield on both sides	ZZ
-2RSH	Contact seal, NBR, on both sides	2RS
-2RS1	Contact seal, NBR, on both sides	2RS
/C3	Radial internal clearance greater than Normal	C3 (on request)
-2RSL	Low-friction seal, NBR, on both sides	Not in FULI catalog; send the number and we will reply

2RSH or 2RS1?

SKF has moved part of the range from 2RS1 to 2RSH. The SKF product page for 6205-2RS1 says: “6205-2RS1 has been replaced by 6205-2RSH”. On the SKF product pages we checked in September 2026:

• 2RSH: 6000 to 6005, 6200 to 6205 and 6300 to 6304.
• 2RSH and 2RS1 both listed: 6207, 6210 and 6309.
• 2RS1 only: 6006 to 6010, 6206, 6208, 6209, 6211, 6212, 6305 to 6308 and 6310.

Both seal codes match FULI 2RS.

How SKF writes C3

SKF separates the clearance suffix with an oblique stroke: 6205-2RSH/C3, 6205-2Z/C3, 6205/C3. The SKF basic designation system lists “Space, oblique stroke or hyphen” as the separators. FULI writes 6205-2RS C3. Radial clearance is C0 as standard and C3 on request.

SKF to FULI cross reference chart: 6000, 6200 and 6300 series

Download this chart as a PDF with the FAG table, the C3 note and our contact details.

Dimensions are from the FULI catalog. SKF numbers are from SKF product pages; sources are listed at the end of the page. The C3 column shows how SKF writes the C3 version; for FULI, C3 is on request. If a cell shows “ask us”, send us the SKF number and we will check it.

FAG numbers in the same sizes

FAG is a Schaeffler brand. Current FAG deep groove ball bearings carry the Generation C designation, for example 6205-C, 6205-C-2Z and 6205-C-2HRS. The chart lists only current -C numbers.

A dash (—) in the FAG chart means we did not find a current -C number for that size. Send us the FAG number you have and we will check it.

Worked example: SKF 6205-2RSH/C3

SKF 6205-2RSH/C3 is 25 × 52 × 15 mm with contact seals on both sides and C3 clearance. The FULI number is 6205-2RS C3. FULI 6205 dimensions are on the 6205 bearing page; load ratings and speeds for the 6205 are still being checked against FULI’s catalog, so ask for them with the quote.

SKF mounted units and inserts

SKF lists JIS-named units such as UCP 205, UCF 205 and UCFL 205. The FULI units with the same numbers are UCP205 and UCF205. UCFL205 and other sizes are in the pillow block bearing cross reference.

For UC 205 and UC 205-16, the SKF product lookup says the number “might not be an SKF product” and points to YAR 205-2F and YAR 205-100-2F. The FULI insert is UC205.

SKF SY, FY and FYTB units are SKF’s own housing series. SKF does not state that they share dimensions with UCP, UCF or UCFL units, so we do not list a FULI number for them. Check the housing dimensions on the SKF data sheet against the FULI model page, or send us the SKF number. Size tables for FULI units: UCP 200 series and UCF and UCFL 200 series.

When you replace a pillow block unit, compare the center height (base to shaft center) and the bolt hole spacing as well as the bore of the insert bearing. The housing has to fit the existing bolt holes and the shaft has to sit at the same height.

What to check before replacing an SKF bearing

Check these points on the SKF number and the drawing, and write them in your inquiry:

1. Dimensions. Bore, outside diameter and width (d × D × B). The FULI numbers in the chart have the same boundary dimensions; for other sizes, compare the three values with the FULI model page.
2. Shields or seals. Read the full suffix: 2Z is a shield, 2RSH and 2RS1 are contact seals, and 2RSL is a low-friction seal with no FULI catalog number. Check anything written after the seal code as well.
3. Internal clearance. If the SKF number ends in /C3, ask for C3. FULI radial clearance is C0 as standard and C3 on request. In the SKF designation system, P63 means P6 tolerances plus C3 clearance.
4. Tolerance class. SKF shows a tolerance class with a suffix: P6 or P5 means dimensional and running tolerances to that class. Write the class you need, Normal or P6 for example, in your inquiry.
5. Material. FULI rings and balls are GCr15 chrome bearing steel as standard; the steel maker’s material certificate is available on request. If your drawing names a steel grade, include it.
6. Grease. SKF grease suffixes such as GJN, HT, MT33 and WT name the grease in a capped bearing. Give us the grease suffix or the grease name and the operating temperature.
7. Cage. An SKF number without a cage suffix has a stamped steel cage. M means a machined brass cage and TN9 a glass fibre reinforced PA66 cage. If the SKF number has a cage suffix, write the cage material you need.

The SKF suffix meanings above are from the SKF designation system listed in Sources.

SKF tapered and spherical roller bearings

The suffixes on SKF roller bearings mark the internal design, cage, bore and lubrication features. They are not seal codes. The meanings below are from the SKF product catalog and the SKF spherical roller bearing catalog listed in Sources.

Tapered roller bearings: J2/Q and B

SKF’s catalog table lists metric tapered roller bearings by the basic number, for example 30205. The number you see on a box or an invoice usually adds J2/Q:

SKF suffix	SKF meaning	FULI
J2	Pressed steel cage, rolling element guided	Same basic number
Q	Improved friction torque characteristics and raceway geometry	Same basic number
B	Larger contact angle than standard	Ask us

SKF number	FULI	Note
30205 J2/Q	30205	Same d × D × T, 25 × 52 × 16.25 mm
30210 J2/Q	30210	Same d × D × T
32205 BJ2/Q	32205	d, D and T match; SKF’s contact angle is larger. SKF does not list a standard-angle 32205

All 18 sizes with the SKF, Timken, NSK, NTN, Koyo and FAG numbers are in the Timken tapered roller table.

Spherical roller bearings: E, CC/W33 and K

SKF suffix	SKF meaning	What to tell us
E	Optimized internal design for increased load carrying capacity	Same basic number
CC	Flangeless inner ring, guide ring centred on the inner ring, two stamped steel cages	Same basic number
K	Tapered bore, taper 1:12	Ask for the tapered-bore version
W33	Annular groove and three lubrication holes in the outer ring	Ask for groove and holes
C3	Radial internal clearance greater than Normal	Ask for C3

SKF E design bearings have the oil groove and three lubrication holes as standard, so SKF does not add W33 to an E number: 22205 E already has them. A CC design bearing shows them as /W33, for example 23022 CC/W33. FAG E1 bearings also have the groove and holes without a suffix. NSK writes E4, NTN writes D1, and Koyo and NACHI write W33.

SKF number	FULI	Note
22205 E	22205	Cylindrical bore
22205 EK	22205	Tapered bore (K, 1:12): ask us for the FULI tapered-bore version
23022 CC/W33	23022	Cylindrical bore, groove and holes
23022 CCK/W33	23022	Tapered bore: ask us

All 13 spherical sizes with the SKF, NSK, NTN, Koyo, NACHI and FAG numbers are in the spherical roller bearing table.

Send your SKF part list

Paste the SKF numbers with full suffixes and quantities. We reply with the FULI number for each line, price and lead time. Email sales@fuli-bearings.com or use the contact form.

Other brands: Timken and Fafnir to FULI cross reference · NSK, NTN, Koyo and NACHI to FULI cross reference. Mounted units: Pillow block bearing cross reference. All brands and suffixes: Bearing cross reference.

SKF is a trademark of the SKF Group. FAG and Schaeffler are trademarks of Schaeffler Technologies AG & Co. KG. FULI is not affiliated with, authorized by or endorsed by SKF or Schaeffler. Part numbers are shown for interchange reference only. FULI dimensions, load ratings and speeds come from the FULI catalog.

Sources

1. https://www.skf.com/us/products/rolling-bearings/ball-bearings/deep-groove-ball-bearings/designation-system
2. https://www.skf.com/us/products/rolling-bearings/principles-of-rolling-bearing-selection/general-bearing-knowledge/bearing-basics/basic-bearing-designation-system
3. https://evolution.skf.com/added-versatility-as-use-of-rsh-heavy-duty-seals-is-extended/
4. https://medias.schaeffler.us/en/product/rotary/rolling-and-plain-bearings/ball-bearings/deep-groove-ball-bearings/6205-c-2hrs-c3%3ev/p/1683986
5. https://www.skf.com/us/products/mounted-bearings/ball-bearing-units/pillow-block-ball-bearing-units/productid-UCP%20205
6. https://www.skf.com/us/productinfo/productid-UC%20205
7. https://cdn.skfmediahub.skf.com/api/public/0901d196807026e8/pdf_preview_medium/0901d196807026e8_pdf_preview_medium.pdf
8. https://cdn.skfmediahub.skf.com/api/public/0901d196808a4ad1/pdf_preview_medium/0901d196808a4ad1_pdf_preview_medium.pdf
9. https://www.schaeffler.com/remotemedien/media/_shared_media/08_media_library/01_publications/schaeffler_2/tpi/downloads_8/tpi183_de_en.pdf