22212 Bearing Dimensions
22212 is a spherical roller bearing with a 60 mm bore, 110 mm outer diameter and 28 mm width (60×110×28 mm, ISO 15).
22212 specifications
| Bore d | 60 mm |
|---|---|
| Outside diameter D | 110 mm |
| Width B | 28 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 | 156 kN |
|---|---|
| Static load rating C0r | 166 kN |
| Speed ratings | 5,600 / 7,500 rpm — two catalogue speed columns; lubrication basis not stated |
| Weight | 1.15 kg — approx. |
Values from FULI's catalog; confirm for your application.
Nearby 22200/22300 series sizes: 22210 bearing · 22211 bearing · 22213 bearing · 22215 bearing
Grease quantity for 22212: bearing grease fill calculator.
Buying 22212 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 22212 designation
| Segment | Meaning |
|---|---|
| 2 | Spherical roller bearing (double row, self-aligning) |
| 22 | Dimension series 22 |
| 12 | Bore code 12 → 60 mm bore. ISO bore code (00–03 = 10/12/15/17 mm; 04 and above = code × 5 mm). |
22212 cross reference by brand
22212 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: 60 × 110 × 28 mm (d × D × B).
| Brand | Cylindrical bore | Tapered bore (K, 1:12) | Oil groove and holes |
|---|---|---|---|
| FULI | 22212 | ask us | Ask us |
| SKF | 22212 E | 22212 EK | No suffix: standard on E design |
| NSK | 22212EAE4 | 22212EAKE4 | E4 in the number |
| NTN | 22212EAD1 | 22212EAKD1 | D1 in the number |
| Koyo | 22212RZ | 22212RZK | Add W33 |
| NACHI | 22212EX | 22212EXK | Add W33 (W20 = holes only) |
| FAG | 22212-E1-XL | 22212-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 22212
FULI makes 22212 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 60 × 110 × 28 mm size.
| Dimension | Nominal, mm | Deviation, µm | Limits, mm |
|---|---|---|---|
| Bore d (Δdmp) | 60 | 0 / −15 | 60.000 / 59.985 |
| Outside diameter D (ΔDmp) | 110 | 0 / −15 | 110.000 / 109.985 |
| Width B (ΔBs) | 28 | 0 / −150 | 28.000 / 27.850 |
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 60 m5 for the shaft of 22212. The housing bore is usually H7, or J7 where the outer ring must not creep.
| Seat | Deviation, µm | Limits, mm | Fit with 22212 |
|---|---|---|---|
| Shaft 60 m5 | +24 / +11 | 60.024 / 60.011 | 11 to 39 µm interference |
| Housing 110 H7 | +35 / 0 | 110.035 / 110.000 | 0 to 50 µm clearance |
| Housing 110 J7 | +22 / −13 | 110.022 / 109.987 | 13 µm interference to 37 µm clearance |
Taking the loosest and the tightest combination of limits, a P0 22212 on a 60 mm m5 shaft has 11 to 39 µm interference. Its outer ring has 0 to 50 µm clearance in an H7 bore and 13 µm interference to 37 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.
22212 compared with nearby sizes
22212 measures 60 × 110 × 28 mm: bore d, outside diameter D and width B. Other spherical roller bearings on this site for the same 60 mm shaft are 21312 (60 × 130 × 31 mm) and 22312 (60 × 130 × 46 mm).
21312 is the next heavier choice for a 60 mm shaft, with an outside diameter 20 mm larger (130 mm) and 3 mm more width (31 mm). In FULI's catalog 21312 has a dynamic load rating of 212 kN against 156 kN and a weight of about 2.10 kg against 1.15 kg for 22212.
22310 has the same 110 mm outside diameter with a 50 mm bore, so it fits the same housing bore on a smaller shaft.
In the 222 series the sizes either side of 22212 are 22211 for a 55 mm shaft and 22213 for a 65 mm shaft.
| Model | Compared with this page | d × D × B (mm) | Cr (kN) | Weight (kg) |
|---|---|---|---|---|
| 22212 | This page | 60 × 110 × 28 | 156 | 1.15 |
| 22211 | Next size down | 55 × 100 × 25 | 125 | 0.84 |
| 22213 | Next size up | 65 × 120 × 31 | — | 1.55 |
| 21312 | Same bore | 60 × 130 × 31 | 212 | 2.10 |
| 22312 | Same bore | 60 × 130 × 46 | 310 | 3.10 |
| 22310 | Same outside diameter | 50 × 110 × 40 | 220 | 1.90 |
Cr and weight from FULI's catalog; — = not listed on this site.
22212 weight, load ratings and speed
FULI's catalog gives the weight of 22212 as about 1.15 kg, so 100 bearings weigh about 115 kg and 1,000 about 1150 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.
22212 has a dynamic load rating Cr of 156 kN and a static load rating C0r of 166 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, 5,600 and 7,500 rpm, without stating the lubrication for each column.
Values from FULI's catalog; confirm for your application.
22212 bore and clearance versions
FULI's catalog lists 22212 in two bore versions on one line, both 60 × 110 × 28 mm: 22212W33 with a cylindrical bore and 22212K/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 |
|---|---|
| 22212W33 | Cylindrical 60 mm bore, lubrication groove and holes, C0 clearance |
| 22212K/W33 | Tapered bore 1:12 for sleeve mounting, lubrication groove and holes |
| 22212W33 C3 | Cylindrical bore with C3 radial clearance |
| 22212K/W33 C3 | Tapered bore with C3 radial clearance |
22212 dimensions in inches
The nearest common inch shaft size to the 60 mm bore of 22212 is 2-3/8 in (60.33 mm), 0.33 mm larger than the bore, so 22212 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 | 60 mm | 2.3622 in |
| Outside diameter D | 110 mm | 4.3307 in |
| Width B | 28 mm | 1.1024 in |
Converted at 1 in = 25.4 mm and rounded to four decimals. The bearing itself is made to the millimetre sizes.
Grease for 22212
Relubricating 22212 from the side takes about 15.4 g each time by the formula in our grease calculator: 0.005 × D × B = 0.005 × 110 × 28. 22212W33 has a lubrication groove and holes in the outer ring; when grease goes in through them the formula is 0.002 × D × B, about 6.16 g for 22212.
How FULI supplies 22212
The standard 22212 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 22212K/W33 C3.
Tools and guides for 22212
Typical applications
- Crushers and vibrating screens
- Conveyor drums
- Fans and blowers
- Gearboxes
- Paper and textile machinery
FAQ
What is the difference between 22212 and 21312?
Both fit a 60 mm shaft. 22212 is 60 × 110 × 28 mm and 21312 is 60 × 130 × 31 mm, so 21312 has an outside diameter 20 mm larger (130 mm) and 3 mm more width (31 mm). In FULI's catalog 21312 has a dynamic load rating of 212 kN against 156 kN and a weight of about 2.10 kg against 1.15 kg for 22212. Choose 21312 for a higher load where the housing has room for it; 22212 keeps the housing smaller.
What size is 22212 in inches?
22212 is 2.3622 × 4.3307 × 1.1024 in (60 × 110 × 28 mm, d × D × B). The nearest common inch shaft size to the 60 mm bore of 22212 is 2-3/8 in (60.33 mm), 0.33 mm larger than the bore, so 22212 will not go on it. Use an inch bearing on an inch shaft.
How much does 22212 weigh?
About 1.15 kg in FULI's catalog, so 100 pieces weigh about 115 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.
How much grease does 22212 need?
About 15.4 g each time it is relubricated from the side (0.005 × 110 × 28).
Is 22212 the same size across brands?
Bore d, outside diameter D and width B are the same: 22212 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).