22317 bearing: complete specifications & equivalents
The 22317 is a ISO 15 radial bearing sized 85 x 180 x 60 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Bore diameter d | 85 mm |
| Outer diameter D | 180 mm |
| Width B | 60 mm |
| Seal / shield | open |
| Internal clearance | CN / C3 / C4 available |
| Tolerance class | P0 |
| Cage | steel |
| Operating temperature | -30 to +120 °C |
| Mass (geometry estimate) | 6053 g |
| Standard | ISO 15 |
| Catalog version | iso15-srb-geometry |
| Last verified | 2026-09-24 |
Source: ISO 15 boundary-dimensions standard · extracted 2026-09-24
Standard-interchange bearing: dimensions per ISO 15; CN clearance, P0 tolerance and a stamped-steel cage are catalogue defaults unless the supplier states otherwise, and mass is a geometry-derived estimate. Brand catalogue load ratings and limiting speeds for 22317 are being backfilled — use the inquiry form for certified values.
Dimensions in inches & 22300-series range
| Bore d | 3.346 in |
|---|---|
| Outer diameter D | 7.087 in |
| Width B | 2.362 in |
| ISO bore code | 17 |
| Radial section height (D−d)/2 | 47.5 mm |
| Smallest bore in 22300-series | 40 mm |
| Largest outer diameter in 22300-series | 320 mm |
| Width range across 22300-series | 33–108 mm |
| Bore position in 22300-series (smallest first) | 10 of 18 |
| Bore above smallest 22300-series size | 45 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 22317 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the 22317 model number is decoded
In the 22300-series (ISO 15 dimension series) the leading 2 marks a double-row spherical roller and the last two digits of 22317 encode the bore: code 17 = 85 mm (code × 5 from 04 upward). The ISO 15 envelope is 180 mm outside diameter and 60 mm width — 3.346 × 7.087 × 2.362 in, with a 47.5 mm radial section height. Two rows of symmetrical barrel rollers on a common sphered outer raceway self-align to shaft deflection while carrying heavy radial load and bidirectional axial load. Typical catalogue practice for a rotating inner ring is a k5 shaft seat, H7 housing and C3 internal clearance; K variants use a 1:12 tapered bore on an adapter sleeve — verify against the mounting arrangement.
Typical equipment & failure modes
Common applications
- jaw and cone crusher eccentric shafts
- paper machine drying cylinders
- large gear drives and mill pinions
- heavy conveyor drum pulleys
- cement and aggregate processing machinery
Known failure patterns
- lubricant starvation and cage wear where the relubrication interval ignores the slow-speed, dirty operating regime
- water and grit pitting of open bearings in mining and pulping duty after the housing seals degrade
- unloaded-row scuffing when pure thrust exceeds the catalogue axial capacity and one roller row unloads completely
- thermal seizure when an interference shaft fit plus hot running removes all residual radial clearance from a CN bearing
- raceway and roller spalling after the L10 life or from sustained overload and shock in crusher duty
Selection pitfalls — read before you substitute
- The large 85 mm-bore 22317 mounts with real force: use induction heating or hydraulic drive-up on the tapered seat, measure residual clearance in micrometres, and plan lifting fixtures — the 60 mm double-row assembly cannot be drifted into position without brinelling.
- The 223 heavy wide series at 85 mm bore (180×60 mm) is selected for shock and high radial load in screens and crushers; its 47.5 mm section needs correspondingly wider shaft and housing shoulders and a stiffer shaft than a 22217 on the same journal.
- Check the shoulder geometry for 22317: a generous fillet on the 85 mm shaft looks strong but stops the 60 mm inner ring seating home; use the catalogue corner-relief radius and provide a withdrawal groove so the 47.5 mm-section outer ring presses flush in the 180 mm housing.
- Large 22317 tapers should be mounted with a hydraulic nut or oil injection: controlled drive-up sets the residual radial clearance on the 60 mm-wide double row, whereas bar-and-spanner force either under-drives (fretting) or over-drives (thermal seizure on first hot run).
- Relubricate 22317 through the W33 groove while the shaft turns slowly so fresh grease flushes the full 60 mm-wide roller set; pumping grease into a stationary bearing channels it past one row and leaves the other side of the 85 mm bore starved.
- Choose the bore type deliberately: plain 22317 takes a cylindrical seat, while the K variant has a 1:12 tapered bore and mounts on an adapter sleeve (H3xx series) over a plain commercial shaft or directly on a tapered journal — the two mounting procedures are not interchangeable.
- Order clearance for the mounting method: an interference fit on a rotating inner ring plus thermal growth eats into CN play, so most industrial 85 mm-bore mounts use C3, vibrating screens use C4, and CN is mainly for loose/split-housing fits — the designation suffix states the class.
Frequently asked questions
What are the dimensions of a 22317 spherical roller bearing?
A 22317 double-row spherical roller bearing per ISO 15 has a 85 mm bore, 180 mm outer diameter and 60 mm width (3.346 × 7.087 × 2.362 in), a 47.5 mm radial section and roughly 6053 g geometry-based estimated mass; catalogue masses vary with cage and design.
How does the 22317 bore code work?
The leading 2 in 22317 denotes a double-row spherical roller, the middle digits give the ISO 15 dimension series, and the last two digits are bore code 17: 17 × 5 = 85 mm. The 180 mm OD and 60 mm width come from the dimension series (22300), not from the bore code alone.
How much misalignment can a 22317 accommodate?
Thanks to the sphered outer ring raceway, 22317 normally accommodates angular misalignment of around 1° under load (up to about 2° in favourable, lightly loaded conditions); the permissible value is smaller under full load and depends on clearance and cage design, so check the catalogue figure for the actual duty.
What is the difference between 22317 and 22317K?
The plain 22317 has a cylindrical bore for a straight shaft seat. The K suffix denotes a 1:12 tapered bore, normally mounted on an H3xx adapter sleeve over a commercial shaft (or directly on a tapered journal); the bearing is driven up the sleeve to a specified residual clearance and locked with a KM nut and tab washer.
Should the 22317 be ordered with CN, C3 or C4 clearance?
Use C3 as the usual default when the rotating inner ring has an interference fit, because the fit plus thermal expansion reduces residual play; choose C4 (often with a vibratory cage design) for screens and feeders; order CN mainly for loose fits on stationary shafts or split housings. A W33 outer-ring lubrication groove is a separate, commonly combined option.
Reviewed & verified by the MPN Base engineering desk against source catalog iso15-srb-geometry on 2026-09-24. Read our editorial & correction policy.