22315 Bearing Dimensions
22315 spherical roller bearing: bore 75 mm, dimensions 75x160x55 mm (FULI catalog). Designation breakdown, bore options and size-equivalent codes.
22315 specifications
| Bore d | 75 mm |
|---|---|
| Outside diameter D | 160 mm |
| Width B | 55 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 | 440 kN |
|---|---|
| Static load rating C0r | 475 kN |
| Speed ratings | 3,200 / 4,300 rpm — two catalogue speed columns; lubrication basis not stated |
| Weight | 5.55 kg — approx. |
Values from FULI's catalog; confirm for your application.
Nearby 22200/22300 series sizes: 22312 bearing · 22314 bearing · 22316 bearing · 22320 bearing
Grease quantity for 22315: bearing grease fill calculator.
Buying 22315 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 22315 designation
| Segment | Meaning |
|---|---|
| 2 | Spherical roller bearing (double row, self-aligning) |
| 23 | Dimension series 23 |
| 15 | Bore code 15 → 75 mm bore. ISO bore code (00–03 = 10/12/15/17 mm; 04 and above = code × 5 mm). |
22315 interchange
22315 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 22315
FULI makes 22315 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 75 × 160 × 55 mm size.
| Dimension | Nominal, mm | Deviation, µm | Limits, mm |
|---|---|---|---|
| Bore d (Δdmp) | 75 | 0 / −15 | 75.000 / 74.985 |
| Outside diameter D (ΔDmp) | 160 | 0 / −25 | 160.000 / 159.975 |
| Width B (ΔBs) | 55 | 0 / −150 | 55.000 / 54.850 |
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 75 m6 for the shaft of 22315. The housing bore is usually H7, or J7 where the outer ring must not creep.
| Seat | Deviation, µm | Limits, mm | Fit with 22315 |
|---|---|---|---|
| Shaft 75 m6 | +30 / +11 | 75.030 / 75.011 | 11 to 45 µm interference |
| Housing 160 H7 | +40 / 0 | 160.040 / 160.000 | 0 to 65 µm clearance |
| Housing 160 J7 | +26 / −14 | 160.026 / 159.986 | 14 µm interference to 51 µm clearance |
Taking the loosest and the tightest combination of limits, a P0 22315 on a 75 mm m6 shaft has 11 to 45 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.
22315 compared with nearby sizes
22315 measures 75 × 160 × 55 mm: bore d, outside diameter D and width B. Other spherical roller bearings on this site for the same 75 mm shaft are 22215 (75 × 130 × 31 mm).
22215 is the lighter option on the same shaft, with an outside diameter 30 mm smaller (130 mm) and 24 mm less width (31 mm), for housings with less room. In FULI's catalog 22215 has a dynamic load rating of 212 kN against 440 kN and a weight of about 1.70 kg against 5.55 kg for 22315.
22218 has the same 160 mm outside diameter with a 90 mm bore, so it fits the same housing bore on a larger shaft.
In the 223 series the sizes either side of 22315 are 22314 for a 70 mm shaft and 22316 for a 80 mm shaft.
| Model | Compared with this page | d × D × B (mm) | Cr (kN) | Weight (kg) |
|---|---|---|---|---|
| 22315 | This page | 75 × 160 × 55 | 440 | 5.55 |
| 22314 | Next size down | 70 × 150 × 51 | 400 | 4.55 |
| 22316 | Next size up | 80 × 170 × 58 | 490 | 6.60 |
| 22215 | Same bore | 75 × 130 × 31 | 212 | 1.70 |
| 22218 | Same outside diameter | 90 × 160 × 40 | 325 | 3.40 |
Cr and weight from FULI's catalog; — = not listed on this site.
22315 weight, load ratings and speed
FULI's catalog gives the weight of 22315 as about 5.55 kg, so 100 bearings weigh about 555 kg and 1,000 about 5550 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.
22315 has a dynamic load rating Cr of 440 kN and a static load rating C0r of 475 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, 3,200 and 4,300 rpm, without stating the lubrication for each column.
Values from FULI's catalog; confirm for your application.
22315 bore and clearance versions
FULI's catalog lists 22315 in two bore versions on one line, both 75 × 160 × 55 mm: 22315W33 with a cylindrical bore and 22315K/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 |
|---|---|
| 22315W33 | Cylindrical 75 mm bore, lubrication groove and holes, C0 clearance |
| 22315K/W33 | Tapered bore 1:12 for sleeve mounting, lubrication groove and holes |
| 22315W33 C3 | Cylindrical bore with C3 radial clearance |
| 22315K/W33 C3 | Tapered bore with C3 radial clearance |
22315 dimensions in inches
The nearest common inch shaft size to the 75 mm bore of 22315 is 2-15/16 in (74.61 mm), 0.39 mm smaller than the bore, so 22315 would be loose on it. Inch shafts need an inch bearing, not a metric one with a sleeve or shim.
| Dimension | Millimetres | Inches |
|---|---|---|
| Bore d | 75 mm | 2.9528 in |
| Outside diameter D | 160 mm | 6.2992 in |
| Width B | 55 mm | 2.1654 in |
Converted at 1 in = 25.4 mm and rounded to four decimals. The bearing itself is made to the millimetre sizes.
Grease for 22315
Relubricating 22315 from the side takes about 44.0 g each time by the formula in our grease calculator: 0.005 × D × B = 0.005 × 160 × 55. 22315W33 has a lubrication groove and holes in the outer ring; when grease goes in through them the formula is 0.002 × D × B, about 17.6 g for 22315.
How FULI supplies 22315
The standard 22315 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 22315K/W33 C3.
Tools and guides for 22315
Typical applications
- Crushers and vibrating screens
- Conveyor drums
- Fans and blowers
- Gearboxes
- Paper and textile machinery
FAQ
What is the difference between 22315 and 22215?
Both fit a 75 mm shaft. 22315 is 75 × 160 × 55 mm and 22215 is 75 × 130 × 31 mm, so 22215 has an outside diameter 30 mm smaller (130 mm) and 24 mm less width (31 mm). In FULI's catalog 22215 has a dynamic load rating of 212 kN against 440 kN and a weight of about 1.70 kg against 5.55 kg for 22315. 22215 suits a housing with less room; 22315 carries more load.
What size is 22315 in inches?
22315 is 2.9528 × 6.2992 × 2.1654 in (75 × 160 × 55 mm, d × D × B). The nearest common inch shaft size to the 75 mm bore of 22315 is 2-15/16 in (74.61 mm), 0.39 mm smaller than the bore, so 22315 would be loose on it. Use an inch bearing on an inch shaft.
How much does 22315 weigh?
About 5.55 kg in FULI's catalog, so 100 pieces weigh about 555 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.
How much grease does 22315 need?
About 44.0 g each time it is relubricated from the side (0.005 × 160 × 55).
Is 22315 the same size across brands?
Bore d, outside diameter D and width B are the same: 22315 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).