3586-3525 bearing: complete specifications & equivalents
The 3586-3525 is a ISO 355 radial bearing sized 45.237 x 87.312 x 30.162 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 45.237 mm |
| Outer diameter D | 87.312 mm |
| Width B | 30.162 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 126 kN |
| Basic static load rating C0 | 132 kN |
| Fatigue load limit Pu | 15 kN |
| Reference speed (thermal) | 6300 rpm |
| Limiting speed (mechanical) | 8000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 780 g |
| Manufacturer designation | SKF 3586/3525 |
| Standard | ISO 355 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB |
| Last verified | 2026-09-28 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB) · extracted 2026-09-28
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB); 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 & 3500-series range
| Bore d | 1.781 in |
|---|---|
| Outer diameter D | 3.437 in |
| Width B | 1.187 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 21 mm |
| Smallest bore in 3500-series | 41.275 mm |
| Largest outer diameter in 3500-series | 87.312 mm |
| Width range across 3500-series | 30.162–30.162 mm |
| Bore position in 3500-series (smallest first) | 2 of 2 |
| Bore above smallest 3500-series size | 3.9620000000000033 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 3586-3525-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 45.237×87.312×30.162 mm envelope per ISO 15; catalogue load ratings differ by >10% — re-rate the application before substituting. |
| 3586-3525 | Timken | full Dimensions and internal design equivalent — standard interchange. | Same inch-series cone/cup boundary envelope (d/D/T); load ratings and speed limits are brand-specific and may differ. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the 3586-3525 model number is decoded
Housing and abutment design flows from the cup: in 3586 the 3525 cup fixes the 87.312 mm OD, the outer-ring face position and the rib shoulder that the rollers contact under thrust, while the 3586 cone determines the 45.237 mm shaft interface; the 30.162 mm width is the assembled pair value.SKF 3586 (SKF 3586/3525) is the 3500-series tapered roller choice for a 45.237 mm shaft — one row of tapered rollers on an asymmetric raceway inside the 87.312×30.162 mm envelope.Reading the designation: 3586 follows the Timken-style inch convention — the cone (inner ring with rollers) and cup (outer ring) are quoted as a pair separated by a slash, and the 3500-series code identifies the dimensional series. The 45.237 mm bore, 87.312 mm OD and 30.162 mm width are the metric equivalents of the inch boundary dimensions. In SKF suffix language a bare 3586 is the standard execution; B marks a larger contact angle and Q or J2 mark clearance/cage variants, all quoted separately. The 15 kN Pu figure feeds the adjusted-life equation at contaminated or partial-film conditions, and the 1.05 C0/C balance shows this execution is tuned to thrust-heavy combined loads rather than pure radial running. Fit selection follows the rotating ring — interference on a rotating cone — and two 3586 units are required to take reversing thrust; keep the induced axial load inside the rated capacity when calculating the pair. Journal and housing interface: the 45.237 mm bore takes a k5 shaft seat (upper deviation ~0.090 mm for this diameter range) and the 87.312 mm outside diameter pairs with an H7 housing bore tolerance band of 87.312.000/87.332 mm; the 30.162 mm width defines the shoulder depth, and the 780 g cone-plus-cup assembly is the dead load on the shaft during thermal expansion calculations.
Typical equipment & failure modes
Common applications
- axle-boxes in material-handling equipment
- automotive and light-truck wheel hubs
- industrial gearbox shafts and reducers
- machine-tool spindles
Known failure patterns
- cup or cone misalignment when the separable rings are not seated square during mounting
- loose cup rotation in the housing when the specified press fit is not achieved
- thermal preload runaway in an O-arrangement pair when inner-ring heat expands the setting
- preload loss as the mounted pair relaxes, letting rollers skid and smear the raceways
- pressed-steel cage wear or fracture after prolonged running above the limiting speed
- edge loading from shaft deflection or housing misalignment
Selection pitfalls — read before you substitute
- On this 45.237 mm bore, interference and temperature rise consume clearance inside a preloaded pair; calculate the residual clearance after mounting and at operating temperature — an over-tight 3586 pair heats, loses setting control and smears the roller-rib contact.
- The 320 series at 45.237 mm bore (87.312×30.162 mm) is the low-friction, higher-speed section; it carries less thrust than a 302 of the same bore, so verify the axial load share before swapping.
- At the 126 kN rating of 3586, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 8,000 r/min speed end and heavier preload only where moment stiffness dominates.
- At the 126 kN rating of 3586, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 8,000 r/min speed end and heavier preload only where moment stiffness dominates.
- Open 3586 units need application-supplied sealing and a defined EP lubricant supply; the roller-rib contact is the first to fail when the additive film breaks down.
- The 126/132 kN ratings are SKF catalogue 17000 values for the basic execution; SKF can revise internal geometry without changing the order number, so keep the catalogue version (PUB BU/P1 17000/1 EN, 2018) with the specification and re-verify for critical drives.
- SKF lists several executions of 3586 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 3586/3525 designation when purchasing and match the execution to the mounting arrangement.
Frequently asked questions
Is 3586 interchangeable with other brands?
Inch-series tapered roller bearings follow a long-standing industry boundary plan, so cones and cups of the same basic number are generally dimensionally interchangeable across manufacturers. However, internal geometry, cage design and load ratings differ by brand, so for paired or precision applications keep both halves of the set from one manufacturer — or re-verify ratings and setting when mixing.
What are the dimensions and catalogue data of 3586?
The SKF 3586/3525 is a single-row tapered roller bearing with 45.237 mm bore, 87.312 mm outer diameter and 30.162 mm width (1.781 × 3.437 × 1.187 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 126 kN, C0 132 kN, fatigue load limit Pu 15 kN, reference speed 6,300 r/min, limiting speed 8,000 r/min, mass about 780 g. It is an open, separable bearing with a pressed-steel cage.
How does the 3586 inch-series designation work?
Inch-series tapered roller bearings use a Timken-style cone/cup convention: the number before the slash identifies the cone (inner ring with roller and cage assembly), the number after the slash identifies the cup (outer ring), and the 3500-series code marks the dimensional series. The metric dimensions 45.237×87.312×30.162 mm are the converted equivalents of the original inch boundary dimensions.
What do the cone and cup numbers in 3586 mean?
The cone number (before the slash) identifies the inner ring, rollers and cage; the cup number (after the slash) identifies the outer ring. Both are quoted together because a single-row tapered roller bearing is a matched separable pair — the cone and cup are ground to work together and are not interchangeable with arbitrary other parts. The series prefix (3500-series) groups sizes that share the same boundary-dimension plan.
Can a single 3586 take axial load in both directions?
No — one single-row tapered roller bearing reacts thrust in one direction only, and under radial load its contact angle induces an axial force. Use two bearings as a matched pair: O (back-to-back) for a rigid, moment-resisting arrangement, X (face-to-face) where thermal expansion must be tolerated, or tandem where one-direction thrust is shared.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB on 2026-09-28. Read our editorial & correction policy.