AXK2035 bearing: complete specifications & equivalents
The AXK2035 is a ISO 3031 radial bearing sized 20 x 35 x 2 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 20 mm |
| Outer diameter D | 35 mm |
| Width B | 2 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 12 kN |
| Basic static load rating C0 | 47.5 kN |
| Fatigue load limit Pu | 5.6 kN |
| Reference speed (thermal) | 4300 rpm |
| Limiting speed (mechanical) | 8500 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 5 g |
| Manufacturer designation | AXK 2035 |
| 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 | 0.787 in |
|---|---|
| Outer diameter D | 1.378 in |
| Width B | 0.079 in |
| ISO bore code | 35 |
| Radial section height (D−d)/2 | 7.5 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) | 9 of 30 |
| Bore above smallest AXK-series size | 16 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the AXK2035 model number is decoded
For transmission gears that would otherwise rub on a housing wall, AXK 2035 supplies a complete needle thrust track between 22 and 34 mm raceway diameters in a 2 mm envelope. In AXK 2035 the number is the boundary plan, not a bore code: 20/35, with the 2 mm assembly thickness fixed by the ISO 3031 plan and Ea/Eb 22/34 mm marking the actual needle-contact band. Small AXK sizes are offered with the glass-fibre TN cage or the stamped steel cage; both are 2 mm-class sections. One-direction thrust only. Selection arithmetic: C 12 kN against C0 47.5 kN gives a C0/C ratio of 3.96 — thrust bearings are chosen on static rating and F_a/C0 more often than on L10 life. Grease both faces before assembly so the needles stay in their pockets, especially for the 2 mm thin set; after fitting, rotate slowly and confirm the cage does not catch on the shoulder edges.
Typical equipment & failure modes
Common applications
- 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
- light turntables, index plates and office-machine pivots
Known failure patterns
- edge loading across the needle crowns when the mating faces are not square to the shaft
- smearing at roller-raceway contacts during unloaded startup before the oil film or preload is established
- oil starvation at the sliding contact zones of large spherical roller thrust bearings on forced-feed trips
- false brinelling and rust-red witness marks on standby machines under external vibration
- needle-row denting from a single hard particle trapped in the 2 mm section
Selection pitfalls — read before you substitute
- The AXK 2035 is watchmaking-scale (2 mm thick, 5 g): handle it with tweezers, grease it onto its washer, and assume one dropped or cocked assembly is one ruined bearing.
- the 4,300 r/min reference speed is the thermal criterion under load, the 8,500 r/min limiting speed assumes hardened, ground, oiled faces; soft or dry faces drop the real ceiling drastically.
- The 12 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.
- Match washers by the exact 20–35 mm track — a washer sized to the shaft alone leaves the needles overrunning its edge, which shears the cage.
- The AXK code supplies no washers: AXK 2035 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 12/47.5 kN ratings and 5 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 are the dimensions and ratings of the AXK 2035?
A AXK 2035 measures 20 mm bore × 35 mm outside diameter × 2 mm width (0.787 × 1.378 × 0.079 in). From SKF catalogue PUB BU/P1 17000: dynamic C 12 kN, static C0 47.5 kN, fatigue limit Pu 5.6 kN, reference speed 4,300 r/min, limiting speed 8,500 r/min, mass about 5 g. The contact band runs Ea 22–Eb 34 mm; hardened washers or 58–64 HRC faces are required.
Does the AXK 2035 include washers?
No. AXK is the needle roller and cage thrust assembly only; hardened AS/LS washers or shaft/housing faces at 58–64 HRC, ground over the Ea 22–Eb 34 mm band, supply the two raceways.
How is the AXK 2035 code read?
AXK marks the needle thrust assembly and 20/35 gives the inner 20 mm and outer 35 mm track diameters directly; the assembly is 2 mm thick. TN means the polymer cage instead of stamped steel.
What minimum hardness do the mating faces need?
58–64 HRC with a ground raceway finish. A softer face looks fine after assembly but the needles rib and score it within weeks despite the 12 kN catalogue rating — order certified washers if the shaft/housing cannot be heat treated.
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.