7202-NTN bearing: complete specifications & equivalents
The 7202-NTN is a ISO 15 radial bearing sized 15 x 35 x 11 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 15 mm |
| Outer diameter D | 35 mm |
| Width B | 11 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 10 kN |
| Basic static load rating C0 | 4.7 kN |
| Fatigue load limit Pu | 0.37 kN |
| Limiting speed (mechanical) | 22000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 46 g |
| Manufacturer designation | NTN 7202 |
| 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 & 7200-series range
| Bore d | 0.591 in |
|---|---|
| Outer diameter D | 1.378 in |
| Width B | 0.433 in |
| ISO bore code | 02 |
| Radial section height (D−d)/2 | 10 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) | 3 of 36 |
| Bore above smallest 7200-series size | 5 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the 7202-NTN model number is decoded
7202 is the 15 mm bore member of NTN's medium-duty 7200 single-row family, with a 35 mm outside diameter and 11 mm section width. Decoding 7202: 72 is the single-row dimension series (medium-duty 7200 single-row family), with 02 encodes the 15 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. With C 10 kN and C0 4.7 kN, each mm of bore carries about 0.67 kN of dynamic rating. Against a deep-groove bearing of the same 15 mm bore, this bearing trades some pure-radial comfort for real one-direction thrust capacity and higher running accuracy. Heat-mounting to 80-90 deg C is the clean route onto a 15 mm shaft; drive-fits through the balls transmit force through the contact ellipse and can brinell it.
Typical equipment & failure modes
Common applications
- bicycle and motorcycle wheel and steering positions
- small gearbox pinion shafts with helical gears
- precision instrument and encoder support shafts
- small machine-tool spindle and live-centre positions
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
- loss of preload after housing-fret or shaft creep, leaving the pair loose — ball skidding, cage rattle and a falling natural frequency follow
- resin-cage cracking on the 7900-series sizes after hot, dry running or solvent attack on the polymer
- current-erosion pitting on VFD-driven motor shafts, first visible as a grey frosted band across both raceways
- current-erosion pitting on VFD-driven motor shafts, first visible as a grey frosted band across both raceways
Selection pitfalls — read before you substitute
- At 15 mm bore the rings are thin-sectioned: press force must go through the ring being fitted, never through the balls, or the first damage is already in the raceway before the machine runs.
- 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.
- Do not pair two random 7202 bearings from stock and expect catalogue paired ratings — matched-set grinding is what makes DB/DF/DT preload behave, and NTN sells those as separate order numbers.
- Do not pair two random 7202 bearings from stock and expect catalogue paired ratings — matched-set grinding is what makes DB/DF/DT preload behave, and NTN sells those as separate order numbers.
- On a 15 mm shaft, an interference fit eats internal clearance; skipping the clearance/preload recalculation is the classic cause of a new bearing running 20 deg C hotter than the drawing suggests.
- The 10/4.7 kN ratings and 0.37 kN Pu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 7202; 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 7202?
7202 is a single-row angular contact ball bearing to ISO 15: 15 mm bore, 35 mm outside diameter, 11 mm width (0.591 x 1.378 x 0.433 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 10 kN, C0 4.7 kN and a 0.37 kN fatigue load limit Pu; the grease limiting speed is 22,000 r/min and the oil rating 29,000 r/min; mass about 46 g.
How is the 7202 designation structured?
72 is the single-row dimension series (medium-duty 7200 single-row family); 02 encodes the 15 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 35 mm OD and 11 mm width follow the ISO 15 boundary-dimension plan for that series.
Which axial direction does 7202 support?
One 7202 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 7202?
Per NTN Ball and Roller Bearings CAT.No.2203E, the grease limiting speed is 22,000 r/min and the oil rating 29,000 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 7202?
The 15/35/11 mm envelope is ISO 15 interchangeable, but internal geometry — contact angle, osculation, cage and shoulder details — is maker-specific. Re-verify C 10 kN / C0 4.7 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.