23024 bearing: complete specifications & equivalents
The 23024 is a ISO 15 radial bearing sized 120 x 180 x 46 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | Generic ISO interchange (unbranded) |
| Bore diameter d | 120 mm |
| Outer diameter D | 180 mm |
| Width B | 46 mm |
| Seal / shield | open |
| Internal clearance | CN / C3 / C4 available |
| Tolerance class | P0 |
| Cage | steel |
| Operating temperature | -30 to +120 °C |
| Mass (geometry estimate) | 3318 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 23024 are being backfilled — use the inquiry form for certified values.
Dimensions in inches & 23000-series range
| Bore d | 4.724 in |
|---|---|
| Outer diameter D | 7.087 in |
| Width B | 1.811 in |
| ISO bore code | 24 |
| Radial section height (D−d)/2 | 30 mm |
| Smallest bore in 23000-series | 70 mm |
| Largest outer diameter in 23000-series | 480 mm |
| Width range across 23000-series | 27–121 mm |
| Bore position in 23000-series (smallest first) | 9 of 23 |
| Bore above smallest 23000-series size | 50 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the 23024 model number is decoded
In the 23000-series (ISO 15 dimension series) the leading 2 marks a double-row spherical roller and the last two digits of 23024 encode the bore: code 24 = 120 mm (code × 5 from 04 upward). The ISO 15 envelope is 180 mm outside diameter and 46 mm width — 4.724 × 7.087 × 1.811 in, with a 30.0 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 m6 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
- mining and aggregate vibrating screens
- jaw and cone crusher eccentric shafts
- paper machine drying cylinders
- large gear drives and mill pinions
- heavy conveyor drum pulleys
Known failure patterns
- roller smearing and skid marks when the radial load falls below the minimum load needed to drive the roller set
- cage fatigue and fracture on vibratory screens supplied with normal CN clearance instead of a vibratory C4 fit
- fretting corrosion on a tapered-bore sleeve seat when drive-up is insufficient and the inner ring works on the adapter
- 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
Selection pitfalls — read before you substitute
- The large 120 mm-bore 23024 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 46 mm double-row assembly cannot be drifted into position without brinelling.
- The 230 series (ISO 15 dimension series 30) pairs a wide 46 mm section with a compact 180 mm OD at 120 mm bore — the radial envelope is one step smaller than the 222 medium series, so it carries heavy radial load in restricted housing space; it is not dimensionally interchangeable with a 222 or 223 row on the same bore, so verify OD and width before substitution.
- Thermal soak matters on this 120 mm-bore row: a 180 mm housing heating faster than the shaft closes the 30.0 mm section's internal clearance, so a mount that ran quiet cold can seize hot — start from C3/C4 and verify the operating-temperature play before signing off the 46 mm assembly.
- The 46 mm-wide 23024 seats against shaft and housing shoulders whose fillet must clear the bearing chamfer: keep the corner radius small enough that the 120 mm bore and 180 mm OD faces abut square — an undercut beats an oversized radius, which lifts the ring and edge-loads the 30.0 mm section.
- For a cylindrical-bore 23024, warm the inner ring to 80–100 °C (induction heater, never a flame) and slide it dry to the shoulder of the 120 mm shaft; cooling creates the interference, while hammering cold through the 180 mm assembly dents the sphered raceways.
- Relubricate 23024 through the W33 groove while the shaft turns slowly so fresh grease flushes the full 46 mm-wide roller set; pumping grease into a stationary bearing channels it past one row and leaves the other side of the 120 mm bore starved.
- Order clearance for the mounting method: an interference fit on a rotating inner ring plus thermal growth eats into CN play, so most industrial 120 mm-bore mounts use C3, vibrating screens use C4, and CN is mainly for loose/split-housing fits — the designation suffix states the class.
- Specify W33 when the 46 mm-wide bearing must be relubricated in place: it is the outer-ring annular groove with lubrication holes; without W33 grease only reaches the contacts through the shaft or housing arrangement.
Frequently asked questions
What are the dimensions of a 23024 spherical roller bearing?
A 23024 double-row spherical roller bearing per ISO 15 has a 120 mm bore, 180 mm outer diameter and 46 mm width (4.724 × 7.087 × 1.811 in), a 30.0 mm radial section and roughly 3318 g geometry-based estimated mass; catalogue masses vary with cage and design.
How does the 23024 bore code work?
The leading 2 in 23024 denotes a double-row spherical roller, the middle digits give the ISO 15 dimension series, and the last two digits are bore code 24: 24 × 5 = 120 mm. The 180 mm OD and 46 mm width come from the dimension series (23000), not from the bore code alone.
How much misalignment can a 23024 accommodate?
Thanks to the sphered outer ring raceway, 23024 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 23024 and 23024K?
The plain 23024 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 23024 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.