22314 Bearing Dimensions

Tolerances and fits for 22314

FULI makes 22314 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 70 × 150 × 51 mm size.

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 70 m6 for the shaft of 22314. The housing bore is usually H7, or J7 where the outer ring must not creep.

Taking the loosest and the tightest combination of limits, a P0 22314 on a 70 mm m6 shaft has 11 to 45 µm interference. Its outer ring has 0 to 58 µm clearance in an H7 bore and 14 µm interference to 44 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.

22314 compared with nearby sizes

22314 measures 70 × 150 × 51 mm: bore d, outside diameter D and width B. Other spherical roller bearings on this site for the same 70 mm shaft are 22214 (70 × 125 × 31 mm).

22214 is the lighter option on the same shaft, with an outside diameter 25 mm smaller (125 mm) and 20 mm less width (31 mm), for housings with less room. In FULI's catalog 22214 has a dynamic load rating of 208 kN against 400 kN and a weight of about 1.55 kg against 4.55 kg for 22314.

22217 has the same 150 mm outside diameter with a 85 mm bore, so it fits the same housing bore on a larger shaft.

In the 223 series the sizes either side of 22314 are 22312 for a 60 mm shaft and 22315 for a 75 mm shaft.

Cr and weight from FULI's catalog; — = not listed on this site.

22314 weight, load ratings and speed

FULI's catalog gives the weight of 22314 as about 4.55 kg, so 100 bearings weigh about 455 kg and 1,000 about 4550 kg before packing. The cylindrical bore (W33) and tapered bore (K/W33) versions share this catalog line.

22314 has a dynamic load rating Cr of 400 kN and a static load rating C0r of 430 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.

22314 bore and clearance versions

FULI's catalog lists 22314 in two bore versions on one line, both 70 × 150 × 51 mm: 22314W33 with a cylindrical bore and 22314K/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.

22314 dimensions in inches

The nearest common inch shaft size to the 70 mm bore of 22314 is 2-3/4 in (69.85 mm), 0.15 mm smaller than the bore, so 22314 would be loose on it. Inch shafts need an inch bearing, not a metric one with a sleeve or shim.

Converted at 1 in = 25.4 mm and rounded to four decimals. The bearing itself is made to the millimetre sizes.

Grease for 22314

Relubricating 22314 from the side takes about 38.3 g each time by the formula in our grease calculator: 0.005 × D × B = 0.005 × 150 × 51. 22314W33 has a lubrication groove and holes in the outer ring; when grease goes in through them the formula is 0.002 × D × B, about 15.3 g for 22314.

How FULI supplies 22314

The standard 22314 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 22314K/W33 C3.

Tools and guides for 22314

• Bearing size finder: look up a size from bore, OD and width
• Bearing weight chart
• Bearing grease fill calculator
• Shaft and housing tolerance chart
• Bearing internal clearance: C0, C3 and when to change
• Bearing lubrication basics
• Ball bearing vs roller bearing
• All bearing products and model pages