AXK4060 bearing: complete specifications & equivalents
The AXK4060 is a ISO 3031 radial bearing sized 40 x 60 x 3 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 40 mm |
| Outer diameter D | 60 mm |
| Width B | 3 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 25 kN |
| Basic static load rating C0 | 114 kN |
| Fatigue load limit Pu | 13.7 kN |
| Reference speed (thermal) | 2800 rpm |
| Limiting speed (mechanical) | 5600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 16 g |
| Manufacturer designation | AXK 4060 |
| 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 | 1.575 in |
|---|---|
| Outer diameter D | 2.362 in |
| Width B | 0.118 in |
| ISO bore code | 60 |
| Radial section height (D−d)/2 | 10 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) | 13 of 30 |
| Bore above smallest AXK-series size | 36 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the AXK4060 model number is decoded
SKF's AXK 4060 is not a complete bearing — the stamped steel cage spaces the thrust needles, while hardened AS/LS raceway washers (or shaft and housing faces at 58–64 HRC) provide the two raceways. Reading the code: AXK marks the needle thrust assembly and the figures 40/60 give the two raceway diameters in millimetres — 40 mm inner track and 60 mm outer track; TN swaps the stamped steel cage for PA66. 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. One direction only: AXK 4060 cannot be reversed to take opposite thrust — mirror a second bearing for reversing shafts, and keep housing and shaft seats square within the ISO 104 tolerances. Mounting: harden and grind both mating faces to 58–64 HRC over the full Ea 45–Eb 58 mm band (or fit AS/LS washers), drop the 3 mm cage in flat, and never press or hammer the needle complement.
Typical equipment & failure modes
Common applications
- compact drives where hardened washers replace a machined raceway shoulder
- automotive manual and automatic transmission thrust positions
- torque converter and clutch release assemblies in passenger cars
- small gearbox gears that need a 2 mm thrust shim between a shaft and face
Known failure patterns
- needle-row denting from a single hard particle trapped in the 2 mm section
- smearing at roller-raceway contacts during unloaded startup before the oil film or preload is established
- abrasive paste forming as dust bypasses the housing seals into the open washer set
- rolling-contact fatigue spalling after the catalogue L10 life is exhausted
- instant raceway scoring when the assembly runs against a face below 58 HRC or with a rough finish
Selection pitfalls — read before you substitute
- On a 40 mm shaft the cage is only 3 mm thick — a shaft shoulder with a sharp edge or a 0.1 mm burr will catch and spin the cage instead of locating it.
- Match washers by the exact 40–60 mm track — a washer sized to the shaft alone leaves the needles overrunning its edge, which shears the cage.
- the 2,800 r/min reference speed is the thermal criterion under load, the 5,600 r/min limiting speed assumes hardened, ground, oiled faces; soft or dry faces drop the real ceiling drastically.
- The AXK code supplies no washers: AXK 4060 arrives as the needle cage only, and a "bearing failure" on hard-faced tracks is usually a missing-AS-washer failure at ordering time.
- The 25 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 25/114 kN ratings and 16 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
What does AXK 40/60 mean?
A needle roller and cage thrust assembly (ISO 3031) for a 40 mm inner track and 60 mm outer track, 3 mm thick; one-direction axial load, washers ordered separately.
What is the difference between AXK and AXW?
AXW pairs the AXK needle set with a washer carrying an integral centring spigot that locates in a housing register, keeping cage and washer concentric as one part; AXK is the bare cage-and-needle set needing two separate washers. The AXW still needs a separate LS/AS washer or hardened face on the opposite side.
Does the AXK 4060 tolerate misalignment?
No — the 3 mm rigid needle set edge-loads on tilted faces. Keep the shaft and housing faces parallel, or choose the self-aligning roller thrust families.
Why does an AXK assembly fail early?
Almost always the track: missing/undersized washers, hardness below 58 HRC, a sharp shoulder edge catching the cage, or contamination in the thin section. Rating 25 kN assumes all of these are correct.
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.