AXK1528 bearing: complete specifications & equivalents
The AXK1528 is a ISO 3031 radial bearing sized 15 x 28 x 2 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 15 mm |
| Outer diameter D | 28 mm |
| Width B | 2 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 10.4 kN |
| Basic static load rating C0 | 37.5 kN |
| Fatigue load limit Pu | 4.3 kN |
| Reference speed (thermal) | 4800 rpm |
| Limiting speed (mechanical) | 9500 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 4 g |
| Manufacturer designation | AXK 1528 |
| Standard | ISO 3031 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 12.1 needle roller and cage thrust assemblies |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 12.1 needle roller and cage thrust assemblies) · extracted 2026-09-27
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 12.1 needle roller and cage thrust assemblies); 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 & AXK-series range
| Bore d | 0.591 in |
|---|---|
| Outer diameter D | 1.102 in |
| Width B | 0.079 in |
| ISO bore code | 28 |
| Radial section height (D−d)/2 | 6.5 mm |
| Smallest bore in AXK-series | 4 mm |
| Largest outer diameter in AXK-series | 200 mm |
| Width range across AXK-series | 2–5 mm |
| Bore position in AXK-series (smallest first) | 7 of 30 |
| Bore above smallest AXK-series size | 11 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the AXK1528 model number is decoded
The AXK assembly AXK 1528 covers 15–28 mm in a 2 mm section and is rated 10.4 kN dynamic / 37.5 kN static: the thinnest rolling thrust support available for that seat. In AXK 1528 the number is the boundary plan, not a bore code: 15/28, with the 2 mm assembly thickness fixed by the ISO 3031 plan and Ea/Eb 17/27 mm marking the actual needle-contact band. The thin section tolerates no misalignment: keep the mating faces parallel, and use the AXW spigot-flanged execution where a one-piece, housing-centred cage-plus-washer unit simplifies assembly. Speed planning separates the 4,800 r/min thermal reference from the 9,500 r/min mechanical limiting speed. Thrust bearings govern the thermal speed of many vertical arrangements, and oil circulation raises the usable speed substantially above grease values. Mounting: harden and grind both mating faces to 58–64 HRC over the full Ea 17–Eb 27 mm band (or fit AS/LS washers), drop the 2 mm cage in flat, and never press or hammer the needle complement.
Typical equipment & failure modes
Common applications
- torque converter and clutch release assemblies in passenger cars
- small gearbox gears that need a 2 mm thrust shim between a shaft and face
- light turntables, index plates and office-machine pivots
- two-wheeler gearbox selector and layshaft thrust faces
Known failure patterns
- edge loading across the needle crowns when the mating faces are not square to the shaft
- cage wear from rollers being dragged through unloaded zones under fluctuating thrust
- grease churning and overheating when a high-speed thrust position is over-packed
- hard-particle indentation where oil or grease filtration is inadequate
- needle-row denting from a single hard particle trapped in the 2 mm section
Selection pitfalls — read before you substitute
- The AXK 1528 is watchmaking-scale (2 mm thick, 4 g): handle it with tweezers, grease it onto its washer, and assume one dropped or cocked assembly is one ruined bearing.
- the 4,800 r/min reference speed is the thermal criterion under load, the 9,500 r/min limiting speed assumes hardened, ground, oiled faces; soft or dry faces drop the real ceiling drastically.
- The 10.4 kN rating is real only at 58–64 HRC face hardness; visual inspection cannot tell a 45 HRC washer from a 60 HRC one — order certified washers.
- The AXK code supplies no washers: AXK 1528 arrives as the needle cage only, and a "bearing failure" on hard-faced tracks is usually a missing-AS-washer failure at ordering time.
- Match washers by the exact 15–28 mm track — a washer sized to the shaft alone leaves the needles overrunning its edge, which shears the cage.
- The 10.4/37.5 kN ratings and 4 g mass are SKF catalogue values transcribed from ch. 12.1 of PUB BU/P1 17000 (PDF table page 908); 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
Does the AXK 1528 include washers?
No. AXK is the needle roller and cage thrust assembly only; hardened AS/LS washers or shaft/housing faces at 58–64 HRC, ground over the Ea 17–Eb 27 mm band, supply the two raceways.
How is the AXK 1528 code read?
AXK marks the needle thrust assembly and 15/28 gives the inner 15 mm and outer 28 mm track diameters directly; the assembly is 2 mm thick. TN means the polymer cage instead of stamped steel.
What minimum hardness do the mating faces need?
58–64 HRC with a ground raceway finish. A softer face looks fine after assembly but the needles rib and score it within weeks despite the 10.4 kN catalogue rating — order certified washers if the shaft/housing cannot be heat treated.
How is an AXK thrust assembly mounted?
Harden or washer-face both tracks across Ea 17–Eb 27 mm, keep faces parallel, locate the cage concentrically against a shoulder or register, grease the needles so they stay pocketed, and never press through them.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 12.1 needle roller and cage thrust assemblies on 2026-09-27. Read our editorial & correction policy.