22205 Bearing Dimensions
22205 is a spherical roller bearing with a 25 mm bore, 52 mm outer diameter and 18 mm width (25×52×18 mm, ISO 15).
22205 specifications
| Bore d | 25 mm |
|---|---|
| Outside diameter D | 52 mm |
| Width B | 18 mm |
| Seal / shield options | Open |
| Material | GCr15 chrome bearing steel (rings and rolling elements) |
| Precision | P0 (standard); P6 on request |
| Radial clearance | C0 (standard); C3 on request |
| Load ratings | Load ratings for this model are being checked against FULI's catalog. Ask for them with the quote. |
Nearby 22200/22300 series sizes: 22206 bearing · 22207 bearing
Grease quantity for 22205: bearing grease fill calculator.
Buying 22205 in quantity? See bearing wholesale supplier for pricing by quantity and shipping, and bearing manufacturer in China for how to check the factory.
How to read the 22205 designation
| Segment | Meaning |
|---|---|
| 2 | Spherical roller bearing (double row, self-aligning) |
| 22 | Dimension series 22 |
| 05 | Bore code 05 → 25 mm bore. ISO bore code (00–03 = 10/12/15/17 mm; 04 and above = code × 5 mm). |
22205 cross reference by brand
22205 is an ISO designation: bore d, outside diameter D and width B are the same at each maker. The letters each maker adds are design and cage codes, not seal codes; K marks a tapered bore, and each maker marks the oil groove and holes in its own way. The table below lists the checked forms.
FULI catalog: 25 × 52 × 18 mm (d × D × B).
| Brand | Cylindrical bore | Tapered bore (K, 1:12) | Oil groove and holes |
|---|---|---|---|
| FULI | 22205 | ask us | Ask us |
| SKF | 22205 E | 22205 EK | No suffix: standard on E design |
| NSK | 22205CE4 | 22205CKE4 | E4 in the number |
| NTN | 22205EAD1 | 22205EAKD1 | D1 in the number |
| Koyo | 22205RZ | 22205RZK | Add W33 |
| NACHI | 22205EX | 22205EXK | Add W33 (W20 = holes only) |
| FAG | 22205-E1-XL | 22205-E1-XL-K | No suffix: standard on E1 |
- Tapered-bore versions (K, taper 1:12) fit an adapter sleeve, withdrawal sleeve or tapered shaft. Ask us for a FULI tapered-bore version.
- Cross reference page: full spherical roller table
- SKF page: E, CC/W33 and K suffixes
- NSK, NTN, Koyo and NACHI page: EAE4, EAD1, RZ and EX
Brand names are trademarks of their respective owners. FULI is not affiliated with, authorized by or endorsed by these companies. Part numbers are shown for interchange reference only. FULI dimensions, load ratings and speeds come from the FULI catalog.
Tolerances and fits for 22205
FULI makes 22205 to P0 as standard, with P6 on request. P0 is the Normal tolerance class of ISO 492; P6 limits are tighter. These are the P0 limits for the 25 × 52 × 18 mm size.
| Dimension | Nominal, mm | Deviation, µm | Limits, mm |
|---|---|---|---|
| Bore d (Δdmp) | 25 | 0 / −10 | 25.000 / 24.990 |
| Outside diameter D (ΔDmp) | 52 | 0 / −13 | 52.000 / 51.987 |
| Width B (ΔBs) | 18 | 0 / −120 | 18.000 / 17.880 |
Δdmp and ΔDmp: deviation of the mean bore and mean outside diameter in one radial plane. ΔBs: inner ring width; the outer ring width has the same limits.
Shaft and housing fits (general guidance)
For an inner ring that turns with a solid steel shaft under normal load, bearing makers’ fit tables give 25 k5 for the shaft of 22205. The housing bore is usually H7, or J7 where the outer ring must not creep.
| Seat | Deviation, µm | Limits, mm | Fit with 22205 |
|---|---|---|---|
| Shaft 25 k5 | +11 / +2 | 25.011 / 25.002 | 2 to 21 µm interference |
| Housing 52 H7 | +30 / 0 | 52.030 / 52.000 | 0 to 43 µm clearance |
| Housing 52 J7 | +18 / −12 | 52.018 / 51.988 | 12 µm interference to 31 µm clearance |
Taking the loosest and the tightest combination of limits, a P0 22205 on a 25 mm k5 shaft has 2 to 21 µm interference. Its outer ring has 0 to 43 µm clearance in an H7 bore and 12 µm interference to 31 µm clearance in a J7 bore.
This is general guidance, not a FULI specification. Heavy or shock loads, a hollow shaft, a thin-walled, split or light-alloy housing, or a large temperature difference between shaft and housing call for other classes, and the drawing of your machine takes priority. A tight shaft fit or a hot housing uses up internal clearance, and that is when C3 is chosen instead of C0.
If the outer ring turns and the shaft stands still, as in an idler pulley or a wheel hub, the fits are reversed: the housing gets the interference fit (for example N7 or P7) and the shaft a sliding one (g6 or h6).
Sources: ISO 492 tables as printed in the NTN catalogue CAT. No. 2203/E (Tables 6.4 and 6.5) and the RKB tolerance catalogue; ISO 286-2 for the seats; SKF and NTN fit tables for the shaft and housing classes.
22205 compared with nearby sizes
22205 measures 25 × 52 × 18 mm: bore d, outside diameter D and width B.
In the 222 series the sizes either side of 22205 are 22206 for a 30 mm shaft.
| Model | Compared with this page | d × D × B (mm) | Cr (kN) | Weight (kg) |
|---|---|---|---|---|
| 22205 | This page | 25 × 52 × 18 | — | 0.17 |
| 22206 | Next size up | 30 × 62 × 20 | 64 | 0.29 |
Cr and weight from FULI's catalog; — = not listed on this site.
22205 weight
FULI's catalog gives the weight of 22205 as about 0.17 kg, so 100 bearings weigh about 17 kg and 1,000 about 170 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.
Load ratings and speeds for 22205 are not listed on this page; ask us and we send them with the quotation.
Values from FULI's catalog; confirm for your application.
22205 bore and clearance versions
FULI's catalog lists 22205 in two bore versions on one line, both 25 × 52 × 18 mm: 22205W33 with a cylindrical bore and 22205K/W33 with a 1:12 tapered bore. W33 marks the lubrication groove and holes in the outer ring. The K version is mounted on an adapter sleeve, a withdrawal sleeve or a tapered shaft seat. Radial clearance is C0 as standard and C3 on request.
| Designation | What it is |
|---|---|
| 22205W33 | Cylindrical 25 mm bore, lubrication groove and holes, C0 clearance |
| 22205K/W33 | Tapered bore 1:12 for sleeve mounting, lubrication groove and holes |
| 22205W33 C3 | Cylindrical bore with C3 radial clearance |
| 22205K/W33 C3 | Tapered bore with C3 radial clearance |
22205 dimensions in inches
The nearest common inch shaft size to the 25 mm bore of 22205 is 1 in (25.40 mm), 0.4 mm larger than the bore, so 22205 will not go on it. Inch shafts need an inch bearing, not a metric one with a sleeve or shim.
| Dimension | Millimetres | Inches |
|---|---|---|
| Bore d | 25 mm | 0.9843 in |
| Outside diameter D | 52 mm | 2.0472 in |
| Width B | 18 mm | 0.7087 in |
Converted at 1 in = 25.4 mm and rounded to four decimals. The bearing itself is made to the millimetre sizes.
Grease for 22205
Relubricating 22205 from the side takes about 4.68 g each time by the formula in our grease calculator: 0.005 × D × B = 0.005 × 52 × 18. 22205W33 has a lubrication groove and holes in the outer ring; when grease goes in through them the formula is 0.002 × D × B, about 1.87 g for 22205.
How FULI supplies 22205
The standard 22205 from FULI has GCr15 chrome steel rings and rollers, P0 precision and C0 radial clearance, with P6 and C3 on request.
Rings are marked with a brand you are authorised to use, with the FULI brand, or left neutral, as your order states. The box is printed with the model, precision class and brand.
Inquiries that leave out the prefix or suffix letters are the usual cause of a wrong quote, so write the full designation, for example 22205K/W33 C3.
Tools and guides for 22205
Typical applications
- Crushers and vibrating screens
- Conveyor drums
- Fans and blowers
- Gearboxes
- Paper and textile machinery
FAQ
What size is 22205 in inches?
22205 is 0.9843 × 2.0472 × 0.7087 in (25 × 52 × 18 mm, d × D × B). The nearest common inch shaft size to the 25 mm bore of 22205 is 1 in (25.40 mm), 0.4 mm larger than the bore, so 22205 will not go on it. Use an inch bearing on an inch shaft.
How much does 22205 weigh?
About 0.17 kg in FULI's catalog, so 100 pieces weigh about 17 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.
How much grease does 22205 need?
About 4.68 g each time it is relubricated from the side (0.005 × 52 × 18).
Is 22205 the same size across brands?
Bore d, outside diameter D and width B are the same: 22205 is an ISO designation. The letters each maker adds (SKF E or CC, NSK CE4, EAE4 or CDE4, NTN EAD1, Koyo RZ, NACHI EX or E, FAG E1-XL) are design and cage codes, not seal codes. K marks a tapered bore, and the oil groove and holes are marked differently by each maker (SKF W33, NSK E4, NTN D1).
Where are the load ratings for 22205?
Load ratings for 22205 are being checked against FULI's catalog and are not shown on this page yet. Model pages with a "Load ratings & speed" table carry values from FULI's catalog.