292-530-EM bearing: complete specifications & equivalents
The 292-530-EM is a ISO 104 radial bearing sized 530 x 710 x 109 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 530 mm |
| Outer diameter D | 710 mm |
| Width B | 109 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 3110 kN |
| Basic static load rating C0 | 15300 kN |
| Fatigue load limit Pu | 1220 kN |
| Reference speed (thermal) | 530 rpm |
| Limiting speed (mechanical) | 850 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 115000 g |
| Manufacturer designation | 292/530 EM |
| Standard | ISO 104 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 13.1 spherical roller thrust bearings |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 13.1 spherical roller thrust bearings) · extracted 2026-09-27
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 13.1 spherical roller thrust bearings); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & 29200-series range
| Bore d | 20.866 in |
|---|---|
| Outer diameter D | 27.953 in |
| Width B | 4.291 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 90 mm |
| Smallest bore in 29200-series | 150 mm |
| Largest outer diameter in 29200-series | 1060 mm |
| Width range across 29200-series | 39–155 mm |
| Bore position in 29200-series (smallest first) | 19 of 23 |
| Bore above smallest 29200-series size | 380 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the 292-530-EM model number is decoded
SKF supplies 292/530 EM for very heavy one-direction axial load: 3110 kN dynamic and 15300 kN static, with the spherical seat absorbing shaft deflection and some simultaneous radial force. Reading the code: 292 gives the dimension series (high-speed 292 series) and 530 mm (slash-size) the 530 mm shaft washer bore (the bore is written directly after the slash (no bore code)); the EM sets the cage design. The machined brass EM cage is matched to size: brass cages tolerate the heaviest, slowest loads and marginal film conditions. The sphered housing washer self-aligns during mounting and under shaft deflection. Static safety matters for shock duty: compare peak axial force against C0 15300 kN with the application's static factor, since crane hooks and screw positions see their worst load at zero or low speed. Verify the minimum axial load (factor A 22) immediately at commissioning — a cold start unloaded smears the rollers; spring preload or rotor weight must be present before the shaft rotates.
Typical equipment & failure modes
Common applications
- marine shaft and rudder-style thrust positions with seat deflection
- paper machine calender and refiner discs with combined axial and radial force
- crane hook assemblies where the hook block turns under full load
- injection moulding machine and extruder screw thrust positions
Known failure patterns
- smearing at roller-raceway contacts during unloaded startup before the oil film or preload is established
- shaft-washer creep and fretting corrosion on a soft or undersized shaft shoulder
- grease churning and overheating when a high-speed thrust position is over-packed
- condensation pitting in machines that run intermittently in humid environments
- cage wear from rollers being dragged through unloaded zones under fluctuating thrust
Selection pitfalls — read before you substitute
- Above 300 mm bore the minimum load is large (A 22 here): design the preload or lift sequence explicitly — an unloaded slow rotation glazes the 710 mm washer track.
- The spherical seat tolerates static misalignment, not a continuously rocking housing — a loose sphered seat frets under oscillation and needs the catalogue seat tolerances plus clean, greased contact.
- the 530 r/min reference speed is the thermal criterion under load, the 850 r/min limiting speed is the mechanical ceiling; large 292 bearings are normally run well below it with oil cooling.
- Minimum load factor A 22 dominates commissioning: start the oil flow and preload before rotation, especially on 292 bearings where an unloaded cold start smears the rollers.
- Radial force beyond the permitted fraction of simultaneous thrust (about 0.55·F_a) overloads one side of the barrel-roller set — add a radial bearing instead of leaning on 292/530 EM.
- The 3110/15300 kN ratings and 115000 g mass are SKF catalogue values transcribed from ch. 13.1 of PUB BU/P1 17000 (PDF table page 928); mounting data — the minimum axial load factor A — appears in the running text because the structured record carries the boundary envelope only.
Frequently asked questions
What destroys a spherical roller thrust bearing?
Unloaded rotation below A 22 (roller smearing), interrupted oil supply on the large sizes, a missing sphered seating washer that removes alignment, and contamination. Limiting speed here is 850 r/min.
Which dimensions does the 292/530 EM have?
A 292/530 EM measures 530 mm bore × 710 mm outside diameter × 109 mm width (20.866 × 27.953 × 4.291 in). From SKF catalogue PUB BU/P1 17000: dynamic C 3110 kN, static C0 15300 kN, fatigue limit Pu 1220 kN, reference speed 530 r/min, limiting speed 850 r/min, mass about 115000 g. Minimum axial load factor A 22 must be maintained in service.
What is the difference between 292, 293 and 294 series?
292 is the light, fastest section; 293 the medium; 294 the heaviest with the largest OD per bore and the greatest thrust capacity. 292/530 EM is the high-speed 292 series, 530×710×109 mm.
What do E, EM and EF mean on 292/530 EM?
They are cage designs for different size bands: E is the stamped steel window cage of the current design, EM the machined brass cage for heavy/slow sizes, EF the steel cage for extra-large bearings — not quality grades. This bearing carries the machined brass EM cage.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 13.1 spherical roller thrust bearings on 2026-09-27. Read our editorial & correction policy.