22220 Bearing Dimensions
22220 is a spherical roller bearing with a 100 mm bore, 180 mm outer diameter and 46 mm width (100×180×46 mm, ISO 15).
22220 specifications
| Bore d | 100 mm |
|---|---|
| Outside diameter D | 180 mm |
| Width B | 46 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 & speed
| Dynamic load rating Cr | 428 kN |
|---|---|
| Static load rating C0r | 490 kN |
| Speed ratings | 3,400 / 4,500 rpm — two catalogue speed columns; lubrication basis not stated |
| Weight | 4.90 kg — approx. |
Values from FULI's catalog; confirm for your application.
Nearby 22200/22300 series sizes: 22215 bearing · 22217 bearing · 22214 bearing · 22216 bearing
Grease quantity for 22220: bearing grease fill calculator.
Buying 22220 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 22220 designation
| Segment | Meaning |
|---|---|
| 2 | Spherical roller bearing (double row, self-aligning) |
| 22 | Dimension series 22 |
| 20 | Bore code 20 → 100 mm bore. ISO bore code (00–03 = 10/12/15/17 mm; 04 and above = code × 5 mm). |
22220 cross reference by brand
22220 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: 100 × 180 × 46 mm (d × D × B).
| Brand | Cylindrical bore | Tapered bore (K, 1:12) | Oil groove and holes |
|---|---|---|---|
| FULI | 22220 | ask us | Ask us |
| SKF | 22220 E | 22220 EK | No suffix: standard on E design |
| NSK | 22220EAE4 | 22220EAKE4 | E4 in the number |
| NTN | 22220EAD1 | 22220EAKD1 | D1 in the number |
| Koyo | 22220RZ | 22220RZK | Add W33 |
| NACHI | 22220EX | 22220EXK | Add W33 (W20 = holes only) |
| FAG | 22220-E1-XL | 22220-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 22220
FULI makes 22220 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 100 × 180 × 46 mm size.
| Dimension | Nominal, mm | Deviation, µm | Limits, mm |
|---|---|---|---|
| Bore d (Δdmp) | 100 | 0 / −20 | 100.000 / 99.980 |
| Outside diameter D (ΔDmp) | 180 | 0 / −25 | 180.000 / 179.975 |
| Width B (ΔBs) | 46 | 0 / −200 | 46.000 / 45.800 |
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 100 m6 for the shaft of 22220. The housing bore is usually H7, or J7 where the outer ring must not creep.
| Seat | Deviation, µm | Limits, mm | Fit with 22220 |
|---|---|---|---|
| Shaft 100 m6 | +35 / +13 | 100.035 / 100.013 | 13 to 55 µm interference |
| Housing 180 H7 | +40 / 0 | 180.040 / 180.000 | 0 to 65 µm clearance |
| Housing 180 J7 | +26 / −14 | 180.026 / 179.986 | 14 µm interference to 51 µm clearance |
Taking the loosest and the tightest combination of limits, a P0 22220 on a 100 mm m6 shaft has 13 to 55 µm interference. Its outer ring has 0 to 65 µm clearance in an H7 bore and 14 µm interference to 51 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.
22220 compared with nearby sizes
22220 measures 100 × 180 × 46 mm: bore d, outside diameter D and width B. Other spherical roller bearings on this site for the same 100 mm shaft are 23220 (100 × 180 × 60.3 mm) and 22320 (100 × 215 × 73 mm).
23220 is the next heavier choice for a 100 mm shaft, with the same 180 mm outside diameter and 14.3 mm more width (60.3 mm). In FULI's catalog 23220 has a dynamic load rating of 475 kN against 428 kN and a weight of about 6.85 kg against 4.90 kg for 22220.
23024 has the same 180 mm outside diameter with a 120 mm bore, so it fits the same housing bore on a larger shaft.
In the 222 series the sizes either side of 22220 are 22218 for a 90 mm shaft and 22222 for a 110 mm shaft.
| Model | Compared with this page | d × D × B (mm) | Cr (kN) | Weight (kg) |
|---|---|---|---|---|
| 22220 | This page | 100 × 180 × 46 | 428 | 4.90 |
| 22218 | Next size down | 90 × 160 × 40 | 325 | 3.40 |
| 22222 | Next size up | 110 × 200 × 53 | 560 | 7.00 |
| 23220 | Same bore | 100 × 180 × 60.3 | 475 | 6.85 |
| 22320 | Same bore | 100 × 215 × 73 | 815 | 13.50 |
| 23024 | Same outside diameter | 120 × 180 × 46 | 355 | 4.20 |
Cr and weight from FULI's catalog; — = not listed on this site.
22220 weight, load ratings and speed
FULI's catalog gives the weight of 22220 as about 4.90 kg, so 100 bearings weigh about 490 kg and 1,000 about 4900 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.
22220 has a dynamic load rating Cr of 428 kN and a static load rating C0r of 490 kN. Cr is the load used to work out rating life; C0r is the reference for loads carried while the bearing is stationary or turning slowly. The catalog lists two speed values, 3,400 and 4,500 rpm, without stating the lubrication for each column.
Values from FULI's catalog; confirm for your application.
22220 bore and clearance versions
FULI's catalog lists 22220 in two bore versions on one line, both 100 × 180 × 46 mm: 22220W33 with a cylindrical bore and 22220K/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 |
|---|---|
| 22220W33 | Cylindrical 100 mm bore, lubrication groove and holes, C0 clearance |
| 22220K/W33 | Tapered bore 1:12 for sleeve mounting, lubrication groove and holes |
| 22220W33 C3 | Cylindrical bore with C3 radial clearance |
| 22220K/W33 C3 | Tapered bore with C3 radial clearance |
22220 dimensions in inches
The nearest common inch shaft size to the 100 mm bore of 22220 is 3-15/16 in (100.01 mm), 0.01 mm larger than the bore, so 22220 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 | 100 mm | 3.9370 in |
| Outside diameter D | 180 mm | 7.0866 in |
| Width B | 46 mm | 1.8110 in |
Converted at 1 in = 25.4 mm and rounded to four decimals. The bearing itself is made to the millimetre sizes.
Grease for 22220
Relubricating 22220 from the side takes about 41.4 g each time by the formula in our grease calculator: 0.005 × D × B = 0.005 × 180 × 46. 22220W33 has a lubrication groove and holes in the outer ring; when grease goes in through them the formula is 0.002 × D × B, about 16.6 g for 22220.
How FULI supplies 22220
The standard 22220 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 22220K/W33 C3.
Tools and guides for 22220
Typical applications
- Crushers and vibrating screens
- Conveyor drums
- Fans and blowers
- Gearboxes
- Paper and textile machinery
FAQ
What is the difference between 22220 and 23220?
Both fit a 100 mm shaft. 22220 is 100 × 180 × 46 mm and 23220 is 100 × 180 × 60.3 mm, so 23220 has the same 180 mm outside diameter and 14.3 mm more width (60.3 mm). In FULI's catalog 23220 has a dynamic load rating of 475 kN against 428 kN and a weight of about 6.85 kg against 4.90 kg for 22220. Choose 23220 for a higher load where the housing has room for it; 22220 keeps the housing smaller.
What size is 22220 in inches?
22220 is 3.9370 × 7.0866 × 1.8110 in (100 × 180 × 46 mm, d × D × B). The nearest common inch shaft size to the 100 mm bore of 22220 is 3-15/16 in (100.01 mm), 0.01 mm larger than the bore, so 22220 will not go on it. Use an inch bearing on an inch shaft.
How much does 22220 weigh?
About 4.90 kg in FULI's catalog, so 100 pieces weigh about 490 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.
How much grease does 22220 need?
About 41.4 g each time it is relubricated from the side (0.005 × 180 × 46).
Is 22220 the same size across brands?
Bore d, outside diameter D and width B are the same: 22220 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).