535-532A bearing: complete specifications & equivalents
The 535-532A is a ISO 355 radial bearing sized 44.45 x 111.125 x 38.1 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 44.45 mm |
| Outer diameter D | 111.125 mm |
| Width B | 38.1 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 183 kN |
| Basic static load rating C0 | 190 kN |
| Fatigue load limit Pu | 21.6 kN |
| Reference speed (thermal) | 5300 rpm |
| Limiting speed (mechanical) | 6300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1850 g |
| Manufacturer designation | SKF 535/532 A |
| 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 & 535-series range
| Bore d | 1.75 in |
|---|---|
| Outer diameter D | 4.375 in |
| Width B | 1.5 in |
| ISO bore code | 35 |
| Radial section height (D−d)/2 | 33.3 mm |
| Smallest bore in 535-series | 44.45 mm |
| Largest outer diameter in 535-series | 111.125 mm |
| Width range across 535-series | 36.512–38.1 mm |
| Bore position in 535-series (smallest first) | 1 of 3 |
| Bore above smallest 535-series size | 0 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 535-532A | 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 535-532A model number is decoded
Operating context for the 44.45 mm bore: a shaft of this diameter in the medium-bore band typically runs between 35560 and 53340 r/min in real machinery, and the 111.125 mm outside diameter places the housing shoulder at 119 mm outer abutment; the 38.1 mm width and 1850 g mass together set the shaft critical speed and the housing resonance check for this 53500-series envelope. Cone versus cup responsibility in 535: the 535 cone carries the 44.45 mm bore, rollers and pressed-steel cage; the 532 A cup carries the 111.125 mm OD raceway, the roller-seating rib and the outer press-fit surface. The two references are not interchangeable halves.Ordering number SKF 535/532 A in SKF catalogue PUB BU/P1 17000 denotes a single-row tapered roller bearing for a 44.45 mm shaft, inch series, with an open pressed-steel-cage execution and one-direction axial capacity.The 535-series series assigns 44.45 mm bore, 111.125 mm OD and 38.1 mm width to 535; the cone and cup references are not interchangeable with other inch-series pairs even when the bore matches, because the cup profile and rib geometry are series-specific. SKF lists the plain number as the basic execution; letter suffixes such as B denote a steeper contact angle and are different order numbers. Speed planning uses two different ceilings: 5,300 r/min thermal reference and 6,300 r/min mechanical limiting speed. For a 44.45 mm shaft the usual cone seat is k5 with an H7 housing when the inner ring rotates; arrange two 535 bearings as a set for two-direction location and set clearance from the load diagram, never from assembly feel.
Typical equipment & failure modes
Common applications
- pump and compressor shafts
- machine-tool spindles
- belt-driven fan and blower shafts
- axle-boxes in material-handling equipment
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
- false brinelling on idle paired sets exposed to machine vibration
- uneven load sharing in a pair when spacer faces are not parallel to the bore
- cage pocket scoring when the bearing starts cold with grease of too-high base-oil viscosity
- mounting score marks when the cone is cocked over the shaft keyway or a burr
Selection pitfalls — read before you substitute
- On this 44.45 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 535 pair heats, loses setting control and smears the roller-rib contact.
- The 535-series inch series at 44.45 mm bore (111.125×38.1 mm) follows the Timken cone/cup convention; substitutions must match both the cone and cup reference exactly — interchanging with another series or a metric 3xxxx bearing of the same bore changes OD, width and contact angle, so re-run the pair setting and shoulder-diameter checks before swapping.
- A single 535 cannot locate the shaft axially in both directions; mounting it singly on a reversing-thrust shaft leaves one direction uncontrolled — always use an O or X matched pair for bidirectional location.
- O (back-to-back) pairs are stiffer against moments, X (face-to-face) pairs tolerate misalignment and thermal growth better; choosing the arrangement from the 2D drawing rather than the actual shaft thermal expansion is a common 535 mounting error.
- Never press both rings through the wrong element during fitting: force for an interference shaft seat goes through the cone only, or brinell marks on the 111.125 mm cup race release as noise within the first running hours.
- The 183/190 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 535 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 535/532 A designation when purchasing and match the execution to the mounting arrangement.
Frequently asked questions
What shaft and housing fits suit 535?
For a rotating shaft under normal load, seat the cone on a k5 shaft fit; the cup is usually a loose-to-transition fit in the housing so it can creep slightly and distribute wear. Chamfer and shoulder diameters must clear the bearing rings so the 38.1 mm-wide cup seats square; the mounting setting (end play or preload) is set by the axial position of the cup relative to the cone.
Is 535 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 535?
The SKF 535/532 A is a single-row tapered roller bearing with 44.45 mm bore, 111.125 mm outer diameter and 38.1 mm width (1.75 × 4.375 × 1.5 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 183 kN, C0 190 kN, fatigue load limit Pu 21.6 kN, reference speed 5,300 r/min, limiting speed 6,300 r/min, mass about 1850 g. It is an open, separable bearing with a pressed-steel cage.
How does the 535 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 535-series code marks the dimensional series. The metric dimensions 44.45×111.125×38.1 mm are the converted equivalents of the original inch boundary dimensions.
What do the cone and cup numbers in 535 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 (535-series) groups sizes that share the same boundary-dimension plan.
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.