AXK110145 bearing: complete specifications & equivalents
The AXK110145 is a ISO 3031 radial bearing sized 110 x 145 x 4 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 110 mm |
| Outer diameter D | 145 mm |
| Width B | 4 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 81.5 kN |
| Basic static load rating C0 | 620 kN |
| Fatigue load limit Pu | 72 kN |
| Reference speed (thermal) | 1300 rpm |
| Limiting speed (mechanical) | 2600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 122 g |
| Manufacturer designation | AXK 110145 |
| 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 | 4.331 in |
|---|---|
| Outer diameter D | 5.709 in |
| Width B | 0.157 in |
| ISO bore code | 45 |
| Radial section height (D−d)/2 | 17.5 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) | 25 of 30 |
| Bore above smallest AXK-series size | 106 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the AXK110145 model number is decoded
The AXK assembly AXK 110145 covers 110–145 mm in a 4 mm section and is rated 81.5 kN dynamic / 620 kN static: the thinnest rolling thrust support available for that seat. Reading the code: AXK marks the needle thrust assembly and the figures 110/145 give the two raceway diameters in millimetres — 110 mm inner track and 145 mm outer track; TN swaps the stamped steel cage for PA66. The assembly itself has no rings: both raceways must be supplied as hardened washers or machine faces (58–64 HRC, ground), with the contact band covering Ea 115 to Eb 143 mm. One direction only: AXK 110145 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. Keep the assembly concentric with a shaft shoulder or the housing register — a needle set walking radially off its track is the most common failure; the AXW flanged version removes this risk entirely.
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
- edge loading across the needle crowns when the mating faces are not square to the shaft
- roller skidding and raceway glazing once the thrust falls below the catalogue minimum axial load (factor A)
- abrasive paste forming as dust bypasses the housing seals into the open washer set
- electrical erosion of raceways on VFD-driven shafts without grounding or insulation
- needle-row denting from a single hard particle trapped in the 2 mm section
Selection pitfalls — read before you substitute
- At 110 mm track diameter, face hardness decides everything: a ground-but-soft washer looks correct yet ribbons within months; specify 58–64 HRC on the drawing.
- TN polymer and stamped steel cages of the same code (AXK 110145) share envelopes and ratings; the choice is temperature and noise, not load.
- The AXK code supplies no washers: AXK 110145 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 81.5 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.
- Do not expect misalignment tolerance: a 4 mm rigid needle set edge-loads if the faces tilt even a fraction of a degree — use a spherical or AXW solution where the seat cannot be kept parallel.
- The 81.5/620 kN ratings and 122 g mass are SKF catalogue values transcribed from ch. 12.1 of PUB BU/P1 17000 (PDF table page 910); 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 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 110145 tolerate misalignment?
No — the 4 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 81.5 kN assumes all of these are correct.
Which dimensions does the AXK 110145 have?
A AXK 110145 measures 110 mm bore × 145 mm outside diameter × 4 mm width (4.331 × 5.709 × 0.157 in). From SKF catalogue PUB BU/P1 17000: dynamic C 81.5 kN, static C0 620 kN, fatigue limit Pu 72 kN, reference speed 1,300 r/min, limiting speed 2,600 r/min, mass about 122 g. The contact band runs Ea 115–Eb 143 mm; hardened washers or 58–64 HRC faces are required.
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.