7215 bearing: complete specifications & equivalents
The 7215 is a ISO 15 radial bearing sized 75 x 130 x 25 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 75 mm |
| Outer diameter D | 130 mm |
| Width B | 25 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | polymer (PA66 glass-fibre reinforced) |
| Basic dynamic load rating C | 70.2 kN |
| Basic static load rating C0 | 60 kN |
| Fatigue load limit Pu | 2.5 kN |
| Reference speed (thermal) | 6000 rpm |
| Limiting speed (mechanical) | 5600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1200 g |
| Manufacturer designation | SKF 7215 BEP |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB |
| Last verified | 2026-09-26 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB) · extracted 2026-09-26
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB); 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 & 7200-series range
| Bore d | 2.953 in |
|---|---|
| Outer diameter D | 5.118 in |
| Width B | 0.984 in |
| ISO bore code | 15 |
| Radial section height (D−d)/2 | 27.5 mm |
| Smallest bore in 7200-series | 10 mm |
| Largest outer diameter in 7200-series | 540 mm |
| Width range across 7200-series | 9–85 mm |
| Bore position in 7200-series (smallest first) | 16 of 36 |
| Bore above smallest 7200-series size | 65 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 7215-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×130×25 mm envelope per ISO 15; catalogue load ratings differ by >10% — re-rate the application before substituting. |
| 6215 | SKF | verify Commonly quoted cross reference; confirm against the target catalog before ordering. | Identical envelope but a different bearing type — confirm load and speed suitability before substitution. |
| 6215-2RS | SKF | verify Commonly quoted cross reference; confirm against the target catalog before ordering. | Identical envelope but a different bearing type — confirm load and speed suitability before substitution. |
| 6215-ZZ | SKF | verify Commonly quoted cross reference; confirm against the target catalog before ordering. | Identical envelope but a different bearing type — confirm load and speed suitability before substitution. |
| 7215-BEP | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF 7215 BEP (glass-fibre PA66 cage, open arrangement) is the same-envelope execution with ratings within 10 % — boundary dimensions interchangeable. |
| 7215-BECBM | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF 7215 BECBM (brass cage, open arrangement) is the same-envelope execution with ratings within 10 % — boundary dimensions interchangeable. |
| 7215-BECBP | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF 7215 BECBP (glass-fibre PA66 cage, open arrangement) is the same-envelope execution with ratings within 10 % — boundary dimensions interchangeable. |
| 7215-BECBPH | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF 7215 BECBPH (PEEK cage, open arrangement) is the same-envelope execution with ratings within 10 % — boundary dimensions interchangeable. |
| 7215-BECBY | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF 7215 BECBY shares the envelope but catalogue C/C0 differ — envelope match only after a load check. |
| QJ-215-N2MA | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF QJ 215 N2MA shares the envelope but catalogue C/C0 differ — envelope match only after a load check. |
| QJ-215-MA | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF QJ 215 MA shares the envelope but catalogue C/C0 differ — envelope match only after a load check. |
| QJ-215-N2PHAS | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF QJ 215 N2PHAS shares the envelope but catalogue C/C0 differ — envelope match only after a load check. |
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 7215 model number is decoded
SKF 7215 (7215 BEP) is the light (7200) series angular-contact choice for a 75 mm shaft — one row of balls on a steepened, asymmetric raceway giving a nominal 40° contact angle inside the 130×25 mm ISO 15 envelope.On the SKF nameplate, 7215 follows the ISO numbering convention: 7 for the angular-contact type, 2 for the light section section, final digits 15 for the 75 mm bore. Here B marks the steep 40° contact angle (the highest-capacity single-row angle), E the modernised internal geometry and P the glass-fibre nylon cage; the same bare size in a 25° A-angle or brass M-cage execution carries a different suffix. Speed planning uses two different ceilings: 6,000 r/min reference (thermal, under representative load) and 5,600 r/min limiting (mechanical cage/ball limit). For a 75 mm shaft the usual seat is k5 with an H7 housing when the inner ring rotates; arrange two 7215 bearings as a set for two-direction location and set preload from the load diagram, never from assembly feel.
Typical equipment & failure modes
Common applications
- industrial gearboxes and speed reducers
- process pump and compressor drives
- printing and paper-machine rolls
- crane sheave and hoist gearboxes
Known failure patterns
- contamination wear through the open arrangement when no external seal is provided
- raceway smearing under marginal lubrication at start-up before oil reaches the contact ellipse
- contact-angle shift and edge loading after a pair is tilted in by uneven locknut torque
- preload loss as a matched pair runs loose, letting the balls skid and smear the raceways
- cage pocket damage when the bearing is started cold with grease of too-high base-oil viscosity
- brinelling from pressing the ring home through the balls or from static overload
Selection pitfalls — read before you substitute
- Mount the 75 mm bore 7215 by induction heating of the inner ring (max 120 °C — the PA66 cage sets the ceiling, not the steel); driving it home through the outer ring or balls brinells the asymmetric raceway.
- The 72xx light section at 75 mm bore is the general-purpose angular-contact envelope (130×25 mm); stepping up to a 7315 changes OD, width and heat generation — it is not a drop-in swap when the housing and speed are fixed.
- When the outer ring rotates, reverse the fit logic and provide outer-ring location; the steep 40° contact of 7215 pushes the rings apart under load, so a non-located outer ring walks its seat even when the shaft is fixed.
- A single 7215 cannot locate the shaft axially in both directions; mounting it singly on a reversing-thrust shaft leaves one direction uncontrolled — always use a DB or DF matched pair for bidirectional location.
- The 7215 shares its ISO 15 envelope with deep-groove 6215 but is not a drop-in replacement: it cannot run effectively under pure radial load without a minimum axial load, and a deep-groove bearing cannot replace its combined-load duty.
- The 70.2/60 kN ratings are SKF catalogue 17000 values for the 7215 BEP 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 7215 (BEP basic, BECBP universally matchable, BE-2RZP sealed, BECBM brass-cage, ACC-series at 25°); they are not interchangeable order numbers — quote the full 7215 BEP designation when purchasing and match the execution to the mounting arrangement.
- A plain 7215 BEP is a single open bearing, not a universally matchable one; to mount a defined DB/DF pair order the BECBP (CB) execution — pairing two unmatched basic units gives uncontrolled preload because the side faces are not ground for set mounting.
Frequently asked questions
What are the dimensions and catalogue data of SKF 7215?
The SKF 7215 BEP is a single-row angular-contact ball bearing with 75 mm bore, 130 mm outer diameter and 25 mm width (2.953 × 5.118 × 0.984 in) per ISO 15. From SKF catalogue 17000: basic dynamic load rating C 70.2 kN, C0 60 kN, fatigue load limit Pu 2.5 kN, reference speed 6,000 r/min, limiting speed 5,600 r/min, mass about 1200 g. It is an open 40° contact-angle bearing with a PA66 cage. Preload and lubricant film move the real thermal limit, so treat 6,000 r/min as catalogue conditions, not a guarantee in the housing.
How does the 7215 bore code work?
The last two digits of 7215 are bore code 15, so 15 × 5 = 75 mm bore. The 130 mm OD and 25 mm width come from the ISO 15 diameter-series plan, shared with the 6215 deep-groove envelope.
What do the 72xx and BEP designations mean?
The leading 7 marks a single-row angular-contact bearing; the second digit 2 is the ISO diameter series (light section). In the SKF suffix, B denotes the 40° contact angle, E the enhanced internal design, P the glass-fibre PA66 cage. The plain BEP is the basic open single bearing; BECBP is the universally matchable version. A 25° variant (suffix A, e.g. ACC) runs faster but carries less thrust.
Can a single 7215 take axial load in both directions?
No — one single-row angular-contact bearing reacts thrust in one direction only, and under radial load its 40° contact angle induces an axial force. Use two bearings as a matched pair: DB (back-to-back) for a rigid, moment-resisting arrangement, DF (face-to-face) where thermal expansion must be tolerated, or DT (tandem) where one-direction thrust is shared. Preload light/medium choice changes stiffness and heat, so calculate it from the load diagram rather than torquing until the pair feels tight.
How does 7215 compare with a deep-groove 6215?
Both use the 75×130×25 mm ISO 15 envelope, but the angular-contact 7215 has an asymmetric raceway at a nominal 40° angle: higher combined axial-plus-radial capacity and controlled preload, at the cost of speed, one-direction thrust, mandatory pairing for reversing loads and a minimum axial load requirement. Envelope interchange is therefore dimensional only; the application must actually present axial load for the 7215 design to perform.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB on 2026-09-26. Read our editorial & correction policy.