AXK100135 bearing: complete specifications & equivalents
The AXK100135 is a ISO 3031 radial bearing sized 100 x 135 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 | 100 mm |
| Outer diameter D | 135 mm |
| Width B | 4 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 76.5 kN |
| Basic static load rating C0 | 560 kN |
| Fatigue load limit Pu | 65.5 kN |
| Reference speed (thermal) | 1400 rpm |
| Limiting speed (mechanical) | 2800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 104 g |
| Manufacturer designation | AXK 100135 |
| 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 | 3.937 in |
|---|---|
| Outer diameter D | 5.315 in |
| Width B | 0.157 in |
| ISO bore code | 35 |
| 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) | 24 of 30 |
| Bore above smallest AXK-series size | 96 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the AXK100135 model number is decoded
SKF's AXK 100135 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 100/135 give the two raceway diameters in millimetres — 100 mm inner track and 135 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. Speed planning separates the 1,400 r/min thermal reference from the 2,800 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. 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
- 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
- oil starvation at the sliding contact zones of large spherical roller thrust bearings on forced-feed trips
- 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 100 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 100135) share envelopes and ratings; the choice is temperature and noise, not load.
- The AXK code supplies no washers: AXK 100135 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 100–135 mm track — a washer sized to the shaft alone leaves the needles overrunning its edge, which shears the cage.
- the 1,400 r/min reference speed is the thermal criterion under load, the 2,800 r/min limiting speed assumes hardened, ground, oiled faces; soft or dry faces drop the real ceiling drastically.
- The 76.5/560 kN ratings and 104 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
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 76.5 kN assumes all of these are correct.
Which dimensions does the AXK 100135 have?
A AXK 100135 measures 100 mm bore × 135 mm outside diameter × 4 mm width (3.937 × 5.315 × 0.157 in). From SKF catalogue PUB BU/P1 17000: dynamic C 76.5 kN, static C0 560 kN, fatigue limit Pu 65.5 kN, reference speed 1,400 r/min, limiting speed 2,800 r/min, mass about 104 g. The contact band runs Ea 105–Eb 133 mm; hardened washers or 58–64 HRC faces are required.
What does AXK 100/135 mean?
A needle roller and cage thrust assembly (ISO 3031) for a 100 mm inner track and 135 mm outer track, 4 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.