89324-M bearing: complete specifications & equivalents
The 89324-M is a ISO 104 radial bearing sized 120 x 210 x 54 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 120 mm |
| Outer diameter D | 210 mm |
| Width B | 54 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 510 kN |
| Basic static load rating C0 | 2360 kN |
| Fatigue load limit Pu | 216 kN |
| Reference speed (thermal) | 750 rpm |
| Limiting speed (mechanical) | 1500 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 9450 g |
| Manufacturer designation | 89324 M |
| Standard | ISO 104 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 11.1 cylindrical roller thrust bearings |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 11.1 cylindrical 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. 11.1 cylindrical 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 & 89300-series range
| Bore d | 4.724 in |
|---|---|
| Outer diameter D | 8.268 in |
| Width B | 2.126 in |
| ISO bore code | 24 |
| Radial section height (D−d)/2 | 45 mm |
| Smallest bore in 89300-series | 40 mm |
| Largest outer diameter in 89300-series | 210 mm |
| Width range across 89300-series | 22–54 mm |
| Bore position in 89300-series (smallest first) | 8 of 8 |
| Bore above smallest 89300-series size | 80 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the 89324-M model number is decoded
89324 M is the rigid-washer thrust solution for a 120 mm shaft: unlike ball thrust types, the line contact of cylindrical rollers gives 510 kN C within just 54 mm of axial space, per the ISO 104 plan. SKF thrust-roller numbering mirrors the ball 511/512 plan with 811/812: 812 is the higher (heavier) section per bore, and 893/894 are the very heavy series — 89324 M sits in the heavy 893 series. Small sizes ship with machined brass M cages to guide heavy rollers at the lubricant limit; the 510 kN rating assumes oil or grease reaching the full washer face. Static safety matters for shock duty: compare peak axial force against C0 2360 kN with the application's static factor, since crane hooks and screw positions see their worst load at zero or low speed. Mounting: locate the shaft washer on the 120 mm seat (it rotates and takes an interference fit), leave the housing washer a sliding fit in the 210 mm bore, and check the stack can tilt freely before clamping.
Typical equipment & failure modes
Common applications
- rolling-mill screwdown mechanisms and press adjusters
- slewing and turntable pivots with predominantly axial force
- crane hook crossheads carrying pure hook thrust while the hook swivels
- screw jack and lifting screw thrust positions under slow, steady load
Known failure patterns
- roller skidding and raceway glazing once the thrust falls below the catalogue minimum axial load (factor A)
- housing-washer rotation scored into an unmachined or loose seating face
- abrasive paste forming as dust bypasses the housing seals into the open washer set
- hard-particle indentation where oil or grease filtration is inadequate
- smearing at roller-raceway contacts during unloaded startup before the oil film or preload is established
Selection pitfalls — read before you substitute
- At 120 mm bore the washers are too stiff to conform to a non-square seat: machine the shoulders parallel or the roller ends concentrate load into a narrow stripe across 54 mm.
- The 510/2360 kN ratings assume flat, full-support washer seats; a housing face narrower than the 210 mm washer OD invalidates the rating through edge stress.
- Factor A 0.45 is a mounting requirement, not advice: below the minimum axial load the rollers skid at speed — most "mysterious" early thrust failures are unloaded running.
- Keep the machined brass M cage out of chemical contact with aggressive EP additives beyond its compatibility list; cage damage here redistributes rollers and destroys the washer in hours.
- Do not substitute a thrust ball bearing of the same ISO envelope by rating alone: the cylindrical rollers of 89324 M need different minimum load and lubrication despite the shared 120×210 mm outline.
- The 510/2360 kN ratings and 9450 g mass are SKF catalogue values transcribed from ch. 11.1 of PUB BU/P1 17000 (PDF table page 892); mounting data — Ea/Eb raceway diameters and the minimum load factor A — appears in the running text because the structured record carries the boundary envelope only.
Frequently asked questions
Can a thrust ball bearing replace the 89324 M?
They share ISO boundary outlines (e.g. 511 vs 811), but the roller bearing needs a higher minimum axial load and different lubrication, and its C/C0 figures are not interchangeable — re-run the selection before substituting.
What ruins a 89324 M in service?
Unloaded running below factor A 0.45 causes skidding; non-square or narrow shoulders fret the washer backs; dry starts and contamination do the rest. Speed ceiling: 1,500 r/min limiting.
Which dimensions does the 89324 M have?
A 89324 M measures 120 mm bore × 210 mm outside diameter × 54 mm width (4.724 × 8.268 × 2.126 in). From SKF catalogue PUB BU/P1 17000: dynamic C 510 kN, static C0 2360 kN, fatigue limit Pu 216 kN, reference speed 750 r/min, limiting speed 1,500 r/min, mass about 9450 g. Raceway diameters Ea 132 mm / Eb 205 mm and minimum load factor A 0.45 guide the seat design.
What is the difference between 811 and 812 series?
811 is the light section and 812 the higher, heavier section for the same bore; 893/894 are the extra-heavy series. 89324 M belongs to the heavy 893 series, 120×210×54 mm.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 11.1 cylindrical roller thrust bearings on 2026-09-27. Read our editorial & correction policy.