293-710-EM bearing: complete specifications & equivalents
The 293-710-EM is a ISO 104 radial bearing sized 710 x 1060 x 212 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 710 mm |
| Outer diameter D | 1060 mm |
| Width B | 212 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 9950 kN |
| Basic static load rating C0 | 45500 kN |
| Fatigue load limit Pu | 3400 kN |
| Reference speed (thermal) | 280 rpm |
| Limiting speed (mechanical) | 500 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 610000 g |
| Manufacturer designation | 293/710 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 & 29300-series range
| Bore d | 27.953 in |
|---|---|
| Outer diameter D | 41.732 in |
| Width B | 8.346 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 175 mm |
| Smallest bore in 29300-series | 85 mm |
| Largest outer diameter in 29300-series | 1180 mm |
| Width range across 29300-series | 39–230 mm |
| Bore position in 29300-series (smallest first) | 30 of 31 |
| Bore above smallest 29300-series size | 625 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the 293-710-EM model number is decoded
Where a cylindrical roller thrust bearing would edge-load under deflection, 293/710 EM aligns itself: 710×1060×212 mm envelope, 45500 kN static rating, one load direction. The designation 293/710 EM separates into 293 (series), 710 mm (slash-size) (710 mm bore — bore 710 mm is written directly after the slash) and EM; washers are separable for individual mounting. 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. The 610000 g mass and 212 mm axial height sit between 710 and 1060 mm washer diameters; check the seat shoulder spans the full ring face — a narrow shoulder causes washer fretting long before fatigue does. Verify the minimum axial load (factor A 200) 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
- coal mill, cement mill and sugar mill thrust bearings under shock load
- 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
Known failure patterns
- cage wear from rollers being dragged through unloaded zones under fluctuating thrust
- housing-washer rotation scored into an unmachined or loose seating face
- oil starvation at the sliding contact zones of large spherical roller thrust bearings on forced-feed trips
- condensation pitting in machines that run intermittently in humid environments
- roller skidding and raceway glazing once the thrust falls below the catalogue minimum axial load (factor A)
Selection pitfalls — read before you substitute
- At 710 mm bore and 610 kg, mounting is a rigging operation: sphered seats, oil injection and rotation checks under preload follow the large-bearing mounting manual, not general practice.
- the 280 r/min reference speed is the thermal criterion under load, the 500 r/min limiting speed is the mechanical ceiling; large 293 bearings are normally run well below it with oil cooling.
- 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 293/710 EM.
- E, EM and EF suffixes are cage designs for different size bands, not quality grades: substitute only within the same envelope and check the lubricant compatibility of the cage material.
- The 9950/45500 kN figures assume the matching sphered seating washer is fitted where the catalogue calls for it; a flat housing seat removes the self-aligning function.
- The 9950/45500 kN ratings and 610000 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
Why is the minimum axial load (A 200) so important?
Spherical roller thrust bearings skid and smear immediately when run unloaded — on large sizes factor A 200 corresponds to a substantial force. Springs, oil lift or the rotor/load weight must be applied before rotation, including cold test runs.
Can the 293/710 EM also carry radial load?
Yes, up to roughly 55 % of the simultaneous axial force, thanks to the steep contact angle of the barrel rollers. Beyond that mix, specify a separate radial bearing; the primary duty remains one-direction thrust.
How is a 293/710 EM mounted?
Tight shaft washer on the 710 mm seat, sphered housing washer on its matching seating washer, induction heating for large sizes, oil at the catalogue level before start, and the factor-A 200 preload verified at commissioning.
What are the dimensions and ratings of the 293/710 EM?
A 293/710 EM measures 710 mm bore × 1060 mm outside diameter × 212 mm width (27.953 × 41.732 × 8.346 in). From SKF catalogue PUB BU/P1 17000: dynamic C 9950 kN, static C0 45500 kN, fatigue limit Pu 3400 kN, reference speed 280 r/min, limiting speed 500 r/min, mass about 610000 g. Minimum axial load factor A 200 must be maintained in service.
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.