7012 bearing: complete specifications & equivalents
The 7012 is a ISO 15 radial bearing sized 60 x 95 x 18 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Bore diameter d | 60 mm |
| Outer diameter D | 95 mm |
| Width B | 18 mm |
| Seal / shield | open |
| Internal clearance | CN / C3 available |
| Tolerance class | P0 |
| Cage | brass |
| Operating temperature | -40 to +150 °C |
| Mass (geometry estimate) | 391 g |
| Standard | ISO 15 |
| Catalog version | iso15-ed4-geometry |
| Last verified | 2026-09-24 |
Source: ISO 15 boundary-dimensions standard · extracted 2026-09-24
Standard-interchange bearing: dimensions per ISO 15; CN clearance, P0 tolerance and a stamped-steel cage are catalogue defaults unless the supplier states otherwise, and mass is a geometry-derived estimate. Brand catalogue load ratings and limiting speeds for 7012 are being backfilled — use the inquiry form for certified values.
Dimensions in inches & 7000-series range
| Bore d | 2.362 in |
|---|---|
| Outer diameter D | 3.74 in |
| Width B | 0.709 in |
| ISO bore code | 12 |
| Radial section height (D−d)/2 | 17.5 mm |
| Smallest bore in 7000-series | 10 mm |
| Largest outer diameter in 7000-series | 170 mm |
| Width range across 7000-series | 8–28 mm |
| Bore position in 7000-series (smallest first) | 13 of 23 |
| Bore above smallest 7000-series size | 50 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 7012 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
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 7012 model number is decoded
In the 7000-series (ISO 15 diameter series 0) the last two digits encode the bore: 7012 carries bore code 12 = 60 mm. Outside diameter 95 mm and width 18 mm come from the ISO 15 boundary-dimensions general plan, shared with the 6012 deep-groove envelope. The '7' prefix marks a single-row angular-contact design with an asymmetric raceway and a nominal 40° contact angle (suffix C); a higher-angle variant carries more axial load, a 25° (E / A5) variant runs faster. For combined radial and axial load with a rotating inner ring on a 60 mm shaft, specify a k5 shaft seat with an H7 housing bore — verify against the load direction and magnitude, and pair two units (DB or DF) for bidirectional thrust.
Typical equipment & failure modes
Common applications
- machine tool spindles
- centrifugal pumps
- industrial compressors
- gearbox output shafts
Known failure patterns
- fretting corrosion on a loose shaft seat that lets the inner ring creep
- false brinelling from vibration while the shaft is stationary
- edge loading and early spalling from shaft deflection or housing misalignment
- electric pitting in VFD-driven spindles without shaft grounding protection
Selection pitfalls — read before you substitute
- Thermal expansion on this 60 mm bore consumes preload in a DB pair; size the preload class and clearance for the operating temperature, not the cold state.
- The 70xx extra-light section at 60 mm bore uses a 95 mm OD; axial capacity is lower than a 7212, so do not substitute a failed 72-series spindle bearing with a 70 without re-rating the thrust.
- Mounting direction is fixed by the asymmetric raceway — the marked side faces the axial load; installing 7012 backwards loads the low shoulder and displaces the balls out of the raceway.
- Do not run a single 7012 where a deep-groove 6012 would do: same 60×95×18 mm envelope, but the angular contact trades speed and noise for axial capacity and needs pairing.
Frequently asked questions
What are the dimensions of a 7012 angular-contact bearing?
A 7012 single-row angular-contact ball bearing has a 60 mm bore, 95 mm outer diameter and 18 mm width (2.362 × 3.74 × 0.709 in), per ISO 15 boundary dimensions. It is an open bearing with a nominal 40° contact angle. Geometry-based estimated mass is about 391 g for a brass-cage unit; catalogue masses vary with cage and ball complement.
How does the 7012 bore code work?
The last two digits of 7012 are bore code 12, giving 12 × 5 = 60 mm bore. The 95 mm outside diameter and 18 mm width follow the ISO 15 diameter series, shared with the 6012 deep-groove envelope.
What is the contact angle of 7012?
The nominal contact angle is 40° (suffix C): a higher angle carries more axial load but limits speed. A 25° (suffix E or A5) variant runs faster and is preferred for high-speed spindles; a 15° (suffix C7) version exists for very-high-speed duty. Confirm the angle and ball complement in the supplier catalogue.
Can a single 7012 take axial load in both directions?
No. A single-row angular-contact bearing carries axial load in one direction only. For bidirectional thrust, mount a matched pair — DB (back-to-back) for a rigid, moment-resisting arrangement with preload class light (L) for speed or heavy (H) for stiffness, DF (face-to-face) for thermal expansion tolerance, or DT (tandem) to share one-direction load.
How does 7012 compare with a deep-groove 6012?
Both share the 60×95×18 mm ISO 15 envelope (17.5 mm radial section), but the angular-contact 7012 has an asymmetric raceway and 40° contact angle: it carries higher combined axial+radial load and runs with controlled preload, but is slower, noisier and needs pairing — it is not a drop-in replacement for a deep-groove 6012.
Reviewed & verified by the MPN Base engineering desk against source catalog iso15-ed4-geometry on 2026-09-24. Read our editorial & correction policy.