AXK6085 bearing: complete specifications & equivalents
The AXK6085 is a ISO 3031 radial bearing sized 60 x 85 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 | 60 mm |
| Outer diameter D | 85 mm |
| Width B | 3 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 37.5 kN |
| Basic static load rating C0 | 232 kN |
| Fatigue load limit Pu | 28.5 kN |
| Reference speed (thermal) | 2200 rpm |
| Limiting speed (mechanical) | 4300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 33 g |
| Manufacturer designation | AXK 6085 |
| 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 | 2.362 in |
|---|---|
| Outer diameter D | 3.346 in |
| Width B | 0.118 in |
| ISO bore code | 85 |
| Radial section height (D−d)/2 | 12.5 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) | 17 of 30 |
| Bore above smallest AXK-series size | 56 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the AXK6085 model number is decoded
For transmission gears that would otherwise rub on a housing wall, AXK 6085 supplies a complete needle thrust track between 65 and 83 mm raceway diameters in a 3 mm envelope. Reading the code: AXK marks the needle thrust assembly and the figures 60/85 give the two raceway diameters in millimetres — 60 mm inner track and 85 mm outer track; TN swaps the stamped steel cage for PA66. At this size the stamped steel cage guides long thrust needles; the TN polymer-cage variant is offered where noise matters. One-direction thrust only. The 33 g mass and 3 mm axial height sit between 60 and 85 mm washer diameters; check the seat shoulder spans the full ring face — a narrow shoulder causes washer fretting long before fatigue does. Mounting: harden and grind both mating faces to 58–64 HRC over the full Ea 65–Eb 83 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
- light turntables, index plates and office-machine pivots
- two-wheeler gearbox selector and layshaft thrust faces
- compact drives where hardened washers replace a machined raceway shoulder
- automotive manual and automatic transmission thrust positions
Known failure patterns
- needle-row denting from a single hard particle trapped in the 2 mm section
- 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
- 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 60 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 60–85 mm track — a washer sized to the shaft alone leaves the needles overrunning its edge, which shears the cage.
- the 2,200 r/min reference speed is the thermal criterion under load, the 4,300 r/min limiting speed assumes hardened, ground, oiled faces; soft or dry faces drop the real ceiling drastically.
- TN polymer and stamped steel cages of the same code (AXK 6085) share envelopes and ratings; the choice is temperature and noise, not load.
- The AXK code supplies no washers: AXK 6085 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 37.5/232 kN ratings and 33 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
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 37.5 kN assumes all of these are correct.
Which dimensions does the AXK 6085 have?
A AXK 6085 measures 60 mm bore × 85 mm outside diameter × 3 mm width (2.362 × 3.346 × 0.118 in). From SKF catalogue PUB BU/P1 17000: dynamic C 37.5 kN, static C0 232 kN, fatigue limit Pu 28.5 kN, reference speed 2,200 r/min, limiting speed 4,300 r/min, mass about 33 g. The contact band runs Ea 65–Eb 83 mm; hardened washers or 58–64 HRC faces are required.
What does AXK 60/85 mean?
A needle roller and cage thrust assembly (ISO 3031) for a 60 mm inner track and 85 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.
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.