22224 Bearing Dimensions
22224 spherical roller bearing: bore 120 mm, dimensions 120x215x58 mm (FULI catalog). Designation breakdown, bore options and size-equivalent codes.
22224 specifications
| Bore d | 120 mm |
|---|---|
| Outside diameter D | 215 mm |
| Width B | 58 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 | 630 kN |
|---|---|
| Static load rating C0r | 765 kN |
| Speed ratings | 2,800 / 3,800 rpm — two catalogue speed columns; lubrication basis not stated |
| Weight | 8.70 kg — approx. |
Values from FULI's catalog; confirm for your application.
Nearby 22200/22300 series sizes: 22218 bearing · 22222 bearing · 22308 bearing · 22309 bearing
Grease quantity for 22224: bearing grease fill calculator.
Buying 22224 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 22224 designation
| Segment | Meaning |
|---|---|
| 2 | Spherical roller bearing (double row, self-aligning) |
| 22 | Dimension series 22 |
| 24 | Bore code 24 → 120 mm bore. ISO bore code (00–03 = 10/12/15/17 mm; 04 and above = code × 5 mm). |
22224 interchange
22224 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. Send us the full number on your old bearing and we confirm the match.
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 22224
FULI makes 22224 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 120 × 215 × 58 mm size.
| Dimension | Nominal, mm | Deviation, µm | Limits, mm |
|---|---|---|---|
| Bore d (Δdmp) | 120 | 0 / −20 | 120.000 / 119.980 |
| Outside diameter D (ΔDmp) | 215 | 0 / −30 | 215.000 / 214.970 |
| Width B (ΔBs) | 58 | 0 / −200 | 58.000 / 57.800 |
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 120 n6 for the shaft of 22224. The housing bore is usually H7, or J7 where the outer ring must not creep.
| Seat | Deviation, µm | Limits, mm | Fit with 22224 |
|---|---|---|---|
| Shaft 120 n6 | +45 / +23 | 120.045 / 120.023 | 23 to 65 µm interference |
| Housing 215 H7 | +46 / 0 | 215.046 / 215.000 | 0 to 76 µm clearance |
| Housing 215 J7 | +30 / −16 | 215.030 / 214.984 | 16 µm interference to 60 µm clearance |
Taking the loosest and the tightest combination of limits, a P0 22224 on a 120 mm n6 shaft has 23 to 65 µm interference. Its outer ring has 0 to 76 µm clearance in an H7 bore and 16 µm interference to 60 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.
22224 compared with nearby sizes
22224 measures 120 × 215 × 58 mm: bore d, outside diameter D and width B. Other spherical roller bearings on this site for the same 120 mm shaft are 23024 (120 × 180 × 46 mm) and 23224 (120 × 215 × 76 mm).
23224 is the next heavier choice for a 120 mm shaft, with the same 215 mm outside diameter and 18 mm more width (76 mm). In FULI's catalog 23224 has a dynamic load rating of 695 kN against 630 kN and a weight of about 12.00 kg against 8.70 kg for 22224.
23024 is the lighter option on the same shaft, with an outside diameter 35 mm smaller (180 mm) and 12 mm less width (46 mm), for housings with less room. In FULI's catalog 23024 has a dynamic load rating of 355 kN against 630 kN and a weight of about 4.20 kg against 8.70 kg for 22224.
22320 has the same 215 mm outside diameter with a 100 mm bore, so it fits the same housing bore on a smaller shaft.
In the 222 series the sizes either side of 22224 are 22222 for a 110 mm shaft.
| Model | Compared with this page | d × D × B (mm) | Cr (kN) | Weight (kg) |
|---|---|---|---|---|
| 22224 | This page | 120 × 215 × 58 | 630 | 8.70 |
| 22222 | Next size down | 110 × 200 × 53 | 560 | 7.00 |
| 23024 | Same bore | 120 × 180 × 46 | 355 | 4.20 |
| 23224 | Same bore | 120 × 215 × 76 | 695 | 12.00 |
| 22320 | Same outside diameter | 100 × 215 × 73 | 815 | 13.50 |
Cr and weight from FULI's catalog; — = not listed on this site.
22224 weight, load ratings and speed
FULI's catalog gives the weight of 22224 as about 8.70 kg, so 100 bearings weigh about 870 kg and 1,000 about 8700 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.
22224 has a dynamic load rating Cr of 630 kN and a static load rating C0r of 765 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, 2,800 and 3,800 rpm, without stating the lubrication for each column.
Values from FULI's catalog; confirm for your application.
22224 bore and clearance versions
FULI's catalog lists 22224 in two bore versions on one line, both 120 × 215 × 58 mm: 22224W33 with a cylindrical bore and 22224K/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 |
|---|---|
| 22224W33 | Cylindrical 120 mm bore, lubrication groove and holes, C0 clearance |
| 22224K/W33 | Tapered bore 1:12 for sleeve mounting, lubrication groove and holes |
| 22224W33 C3 | Cylindrical bore with C3 radial clearance |
| 22224K/W33 C3 | Tapered bore with C3 radial clearance |
22224 dimensions in inches
The nearest common inch shaft size to the 120 mm bore of 22224 is 4-3/4 in (120.65 mm), 0.65 mm larger than the bore, so 22224 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 | 120 mm | 4.7244 in |
| Outside diameter D | 215 mm | 8.4646 in |
| Width B | 58 mm | 2.2835 in |
Converted at 1 in = 25.4 mm and rounded to four decimals. The bearing itself is made to the millimetre sizes.
Grease for 22224
Relubricating 22224 from the side takes about 62.3 g each time by the formula in our grease calculator: 0.005 × D × B = 0.005 × 215 × 58. 22224W33 has a lubrication groove and holes in the outer ring; when grease goes in through them the formula is 0.002 × D × B, about 24.9 g for 22224.
How FULI supplies 22224
The standard 22224 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 22224K/W33 C3.
Tools and guides for 22224
Typical applications
- Crushers and vibrating screens
- Conveyor drums
- Fans and blowers
- Gearboxes
- Paper and textile machinery
FAQ
What is the difference between 22224 and 23224?
Both fit a 120 mm shaft. 22224 is 120 × 215 × 58 mm and 23224 is 120 × 215 × 76 mm, so 23224 has the same 215 mm outside diameter and 18 mm more width (76 mm). In FULI's catalog 23224 has a dynamic load rating of 695 kN against 630 kN and a weight of about 12.00 kg against 8.70 kg for 22224. Choose 23224 for a higher load where the housing has room for it; 22224 keeps the housing smaller.
What is the difference between 22224 and 23024?
Both fit a 120 mm shaft. 22224 is 120 × 215 × 58 mm and 23024 is 120 × 180 × 46 mm, so 23024 has an outside diameter 35 mm smaller (180 mm) and 12 mm less width (46 mm). In FULI's catalog 23024 has a dynamic load rating of 355 kN against 630 kN and a weight of about 4.20 kg against 8.70 kg for 22224. 23024 suits a housing with less room; 22224 carries more load.
What size is 22224 in inches?
22224 is 4.7244 × 8.4646 × 2.2835 in (120 × 215 × 58 mm, d × D × B). The nearest common inch shaft size to the 120 mm bore of 22224 is 4-3/4 in (120.65 mm), 0.65 mm larger than the bore, so 22224 will not go on it. Use an inch bearing on an inch shaft.
How much does 22224 weigh?
About 8.70 kg in FULI's catalog, so 100 pieces weigh about 870 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.
How much grease does 22224 need?
About 62.3 g each time it is relubricated from the side (0.005 × 215 × 58).
Is 22224 the same size across brands?
Bore d, outside diameter D and width B are the same: 22224 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).