AXK4565 bearing: complete specifications & equivalents
The AXK4565 is a ISO 3031 radial bearing sized 45 x 65 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 | 45 mm |
| Outer diameter D | 65 mm |
| Width B | 3 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 27 kN |
| Basic static load rating C0 | 127 kN |
| Fatigue load limit Pu | 15.3 kN |
| Reference speed (thermal) | 2600 rpm |
| Limiting speed (mechanical) | 5300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 18 g |
| Manufacturer designation | AXK 4565 |
| 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 | 1.772 in |
|---|---|
| Outer diameter D | 2.559 in |
| Width B | 0.118 in |
| ISO bore code | 65 |
| 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) | 14 of 30 |
| Bore above smallest AXK-series size | 41 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the AXK4565 model number is decoded
In SKF catalogue PUB BU/P1 17000, AXK 4565 denotes the needle thrust assembly whose code reads the raceway diameters directly — 45/65 — intended to run against hardened, ground washers or machine faces. Reading the code: AXK marks the needle thrust assembly and the figures 45/65 give the two raceway diameters in millimetres — 45 mm inner track and 65 mm outer track; TN swaps the stamped steel cage for PA66. Washer selection is part of the bearing: too-soft faces rib within weeks even though the 27 kN rating is unchanged — the AXK code only supplies the rolling elements. Static safety matters for shock duty: compare peak axial force against C0 127 kN with the application's static factor, since crane hooks and screw positions see their worst load at zero or low speed. Mounting: harden and grind both mating faces to 58–64 HRC over the full Ea 50–Eb 63 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
- 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
- torque converter and clutch release assemblies in passenger cars
Known failure patterns
- needle-row denting from a single hard particle trapped in the 2 mm section
- roller skidding and raceway glazing once the thrust falls below the catalogue minimum axial load (factor A)
- oil starvation at the sliding contact zones of large spherical roller thrust bearings on forced-feed trips
- hard-particle indentation where oil or grease filtration is inadequate
- 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 45 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 45–65 mm track — a washer sized to the shaft alone leaves the needles overrunning its edge, which shears the cage.
- the 2,600 r/min reference speed is the thermal criterion under load, the 5,300 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 4565 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 27 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 27/127 kN ratings and 18 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 45/65 mean?
A needle roller and cage thrust assembly (ISO 3031) for a 45 mm inner track and 65 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 4565 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 27 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.