61932-MA (brass cage) bearing: complete specifications & equivalents
The 61932-MA is a ISO 15 radial bearing sized 160 x 220 x 28 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 160 mm |
| Outer diameter D | 220 mm |
| Width B | 28 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 92.3 kN |
| Basic static load rating C0 | 98 kN |
| Fatigue load limit Pu | 3.05 kN |
| Reference speed (thermal) | 6000 rpm |
| Limiting speed (mechanical) | 5000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 3200 g |
| Manufacturer designation | 61932 MA |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-27
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018)); 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 & 61900-series range
| Bore d | 6.299 in |
|---|---|
| Outer diameter D | 8.661 in |
| Width B | 1.102 in |
| ISO bore code | 32 |
| Radial section height (D−d)/2 | 30 mm |
| Smallest bore in 61900-series | 3 mm |
| Largest outer diameter in 61900-series | 1120 mm |
| Width range across 61900-series | 3–118 mm |
| Bore position in 61900-series (smallest first) | 35 of 63 |
| Bore above smallest 61900-series size | 157 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 61932-FAG | FAG | full Dimensions and internal design equivalent — standard interchange. | FAG counterpart FAG 61932 on the same 160×220×28 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 61932-2RS | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6932DDU on the same 160×220×28 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 61932-ZZ | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6932ZZ on the same 160×220×28 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 61932-NSK | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6932 on the same 160×220×28 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 61932-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6932 on the same 160×220×28 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 61932-2RS-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6932LLU on the same 160×220×28 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 61932-ZZ-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6932ZZ on the same 160×220×28 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 61932 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 61932 (open arrangement) shares the 160×220×28 mm envelope with ratings within 10 % — execution variant of the same size; boundary dimensions interchangeable. |
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 61932-MA model number is decoded
In the 61900-series, the last two digits encode the bore: 61932 carries code 32 = 160 mm (code × 5). The envelope is 160×220×28 mm (6.299×8.661×1.102 in) with a 30.0 mm radial section height, C 92.3 kN, C0 98 kN and Pu 3.05 kN. The open 61932 MA carries no shields or seals and relies on application lubrication and external sealing. The MA suffix identifies the machined brass cage execution, a separate order number from the pressed-steel version. Limiting speed 5000 r/min, catalogue mass 3200 g. A thin section saves space but leaves little margin for misalignment or shaft deflection.
Typical equipment & failure modes
Common applications
- textile and packaging machinery
- slew and indexing drives
- large industrial gearboxes
- heavy conveyor drives
Known failure patterns
- contamination wear when the open arrangement is used without external seals
- lubricant starvation where no regreasing interval is maintained
- raceway smearing under marginal lubrication at start-up
- electrical pitting in VFD-driven motors without shaft grounding
Selection pitfalls — read before you substitute
- Do not preload 61932-MA to silence it: a deep-groove ball bearing is not angular-contact, and axial preload only raises temperature and shortens grease life.
- The fatigue load limit is 3.05 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
- The MA suffix on 61932-MA denotes a machined brass cage: it is the choice for high speeds, marginal lubrication and shock/vibration duty, and it is temperature-tolerant where polymer cages are not — the 3200 g quoted mass includes the heavier cage.
- Open 61932-MA needs external sealing at the arrangement level; in dusty housings its life depends entirely on those external seals and the regreasing schedule.
- Plan a relubrication interval for 61932-MA; run-to-failure on open deep-groove bearings is the dominant early-failure cause.
- Do not preload 61932-MA to silence it: a deep-groove ball bearing is not angular-contact, and axial preload only raises temperature and shortens grease life.
- SKF Explorer deep-groove bearings of this size are produced to tight internal-geometry control; rating revisions between catalogue years do not change the designation, so keep the catalogue edition with the machine documentation.
- Sealed SKF units are filled with a lithium-based grease for general service; food-grade, low-temperature and high-temperature fills are order options and are not field-interchangeable once the unit is sealed.
Frequently asked questions
What are the dimensions of 61932-MA?
The SKF 61932 MA measures 160 mm bore × 220 mm OD × 28 mm width (6.299 × 8.661 × 1.102 in), mass about 3200 g. It is open, with no shields or seals.
How does the bore code in 61932 work?
The final two digits of 61932 are bore code 32, multiplied by 5 to give 160 mm.
What load can 61932-MA take?
Catalogue values for 61932 MA: dynamic C 92.3 kN, static C0 98 kN, fatigue limit Pu 3.05 kN. Use C in life calculation and C0 for static checks at 160 mm bore.
What is the speed rating of 61932-MA?
SKF lists a 6000 r/min thermal reference speed and a 5000 r/min mechanical limiting speed for 61932 MA; real limits also depend on lubrication and fits.
What is the difference between 61932-MA and a same-bore 62-series bearing?
Section height differs: 61932-MA has a 30 mm radial section and C 92.3 kN; always match d, D and B — same bore alone never makes two bearings interchangeable.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-27. Read our editorial & correction policy.