7010-NTN bearing: complete specifications & equivalents
The 7010-NTN is a ISO 15 radial bearing sized 50 x 80 x 16 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 50 mm |
| Outer diameter D | 80 mm |
| Width B | 16 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 26.2 kN |
| Basic static load rating C0 | 20.1 kN |
| Fatigue load limit Pu | 1.42 kN |
| Limiting speed (mechanical) | 8600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 306 g |
| Manufacturer designation | NTN 7010 |
| Standard | ISO 15 |
| Catalog version | NTN Ball and Roller Bearings CAT.No.2203E |
| Last verified | 2026-10-01 |
Source: catalog reference (NTN Ball and Roller Bearings CAT.No.2203E) · extracted 2026-10-01
Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN Ball and Roller Bearings CAT.No.2203E); NTN® is a trademark of NTN Corporation, used here for identification only — mpnbase is not an authorized NTN distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at ntnglobal.com.
Dimensions in inches & 7000-series range
| Bore d | 1.969 in |
|---|---|
| Outer diameter D | 3.15 in |
| Width B | 0.63 in |
| ISO bore code | 10 |
| Radial section height (D−d)/2 | 15 mm |
| Smallest bore in 7000-series | 10 mm |
| Largest outer diameter in 7000-series | 420 mm |
| Width range across 7000-series | 8–65 mm |
| Bore position in 7000-series (smallest first) | 11 of 36 |
| Bore above smallest 7000-series size | 40 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 7010 | GENERIC-ISO | full Dimensions and internal design equivalent — standard interchange. | Identical ISO 15 envelope, seal and ratings band — standard interchange; re-verify precision class and clearance per supplier. |
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 7010-NTN model number is decoded
The standard-section 7000 single-row family entry 7010 carries a 50 mm bore in a 80 mm outside diameter, 16 mm wide envelope. The designation breaks down as 70 is the single-row dimension series (standard-section 7000 single-row family); 10 encodes the 50 mm bore (bore code x 5); with no letter after the digits it is the standard 30 deg contact-angle execution — the 40 deg version carries a B. Catalogue dynamic rating C is 26.2 kN against C0 20.1 kN — a C0/C ratio of 0.77 that is typical of an angular-contact contact ellipse. Size selection is usually finished by checking that the C0 of 20.1 kN covers the maximum static or shock condition with the catalogue safety factor, not only the running load. Set preload or end-play with the pair as a unit and lock the adjustment; a single angular-contact bearing cannot run free like a deep-groove one.
Typical equipment & failure modes
Common applications
- electric motor shafts with axial locating duty
- conveyor drive and tension-drum shafts
- agricultural gearbox and PTO shaft supports
- printing-press cylinder and folder shafts
Known failure patterns
- impact brinelling dents on the 30 deg contact path after a shaft-side hammer blow during mounting, because axial shock travels straight through the contact angle
- thermal runaway from excessive preload: the pair runs hot, grease darkens and the contact ellipse spreads until the raceways smear
- pressed-steel cage pocket wear and rivet loosening after repeated ball skid at light load and high speed
- contamination-induced denting — hard particles rolled into the contact ellipse become the initiation points for surface fatigue
- lubricant starvation scoring at the ball/raceway contact when grease volume or relubrication interval is guessed instead of calculated
Selection pitfalls — read before you substitute
- In this size class the common miss is lubrication interval, not fit — a 50 mm spindle at the catalogue speeds needs a calculated relubrication plan, not a calendar one.
- The standard 30 deg bearing and its B (40 deg) sibling share the envelope; picking between them is a load-direction decision, not a quality upgrade.
- A 7010 mounted the wrong way round still turns smoothly by hand; the failure shows up weeks later as raceway flaking on the unloaded-looking side.
- The C0 of 20.1 kN is a static rating, not a permissible running thrust — sizing continuous axial load from C0 alone is a recurring drawing-office error.
- Substituting the B (40 deg) execution for the standard 30 deg bearing changes the axial/radial load split — the shaft position and the mating bearing see different forces even though the envelope is identical.
- The 26.2/20.1 kN ratings and 1.42 kN Pu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 7010; internal geometry legitimately differs between manufacturers, so re-verify ratings, contact angle and suffix before substituting another make on a rated drive.
Frequently asked questions
What are the dimensions and catalogue ratings of NTN 7010?
7010 is a single-row angular contact ball bearing to ISO 15: 50 mm bore, 80 mm outside diameter, 16 mm width (1.969 x 3.15 x 0.63 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 26.2 kN, C0 20.1 kN and a 1.42 kN fatigue load limit Pu; the grease limiting speed is 8,600 r/min and the oil rating 11,000 r/min; mass about 306 g.
How is the 7010 designation structured?
70 is the single-row dimension series (standard-section 7000 single-row family); 10 encodes the 50 mm bore (bore code x 5); with no letter after the digits it is the standard 30 deg contact-angle execution — the 40 deg version carries a B. The 80 mm OD and 16 mm width follow the ISO 15 boundary-dimension plan for that series.
Which axial direction does 7010 support?
One 7010 alone takes thrust in one direction only, along its 30 deg contact angle; reversing thrust calls for a second bearing or a factory-matched DB/DF/DT pair (the catalogue right-hand columns list the paired ratings). Radial load is always carried as a combined load through the angled contact.
What lubrication speeds does NTN print for 7010?
Per NTN Ball and Roller Bearings CAT.No.2203E, the grease limiting speed is 8,600 r/min and the oil rating 11,000 r/min. These are catalogue ceilings for a correctly mounted bearing with the stated lubricant; preload, fill quantity, ambient heat and paired arrangements all move the real limit.
What should be checked before substituting another make for 7010?
The 50/80/16 mm envelope is ISO 15 interchangeable, but internal geometry — contact angle, osculation, cage and shoulder details — is maker-specific. Re-verify C 26.2 kN / C0 20.1 kN, the speed figures, contact angle and suffix meaning against the donor catalogue before swapping on a rated drive.
Reviewed & verified by the MPN Base engineering desk against source catalog NTN Ball and Roller Bearings CAT.No.2203E on 2026-10-01. Read our editorial & correction policy.