Cross-brand designation analysis
COMPARE / VERIFY
Same-model Comparison
Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
Automatic candidate selection
One base designation across loaded brands
Exact designations rank first. Dimensions, suffixes and other technical differences remain visible so the result is not mistaken for an interchangeability declaration.
Designation candidates
“5213” across 2 loaded brands
One highest-ranked designation candidate is shown per manufacturer. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | NSK521365 × 120 × 38.1 mm | KOYO521365 × 120 × 38.1 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | NSK | KOYO |
| Designation | 5213 | 5213 |
| Product family | Angular contact ball bearing | Double-row / Open |
| Detailed type | Angular contact ball bearings | Angular contact ball bearings |
| Bore diameterd | 65 mm | 65 mm |
| Outside diameterD | 120 mm | 120 mm |
| WidthB | 38.1 mm | 38.1 mm |
| Basic dynamic load ratingC | 84 kN | 109 kN |
| Basic static load ratingC0 | 69 kN | 75.3 kN |
| Fatigue load limitPu | — | 3.9 kN |
| Limiting speednG | — | 3200 r/min |
| Mass≈m | 1.71 kg | 1.66 kg |
| Sealing | Open | Open |
| Cage | Pressed steel | — |
| Boundary dimensions | ||
| Individual bearing widthB | 38.1 mm | — |
| Minimum bearing chamferr min. | 1.5 mm | — |
| Classification | ||
| Official Category Path | — | Angular contact ball bearings - Double-row - Open |
| Official Classification 1 | — | Angular contact ball bearings / Double-row / Open |
| Construction | ||
| Cage material and construction | Pressed steel | — |
| Construction / arrangement | Double-row angular contact bearing | — |
| Load ratings | ||
| Basic dynamic radial load ratingCr | 84000 N | — |
| Basic static radial load ratingC0r | 69000 N | — |
| Load-centre geometry | ||
| Load-centre spacinga0 | 59.7 mm | — |
| Lubrication-qualified speed | ||
| Limiting speed — grease | 3600 r/min | — |
| Limiting speed — oil | 4500 r/min | — |
| Manufacturer Identity | ||
| Official Class Key | — | 020-030-000 |
| Mass reference | ||
| Approximate mass | 1.71 kg | — |
| Mounting dimensions — shown arrangement | ||
| Minimum shaft shoulder diameterda min. | 74 mm | — |
| Maximum housing shoulder diameterDa max. | 111 mm | — |
| Maximum adjacent fillet radiusra max. | 1.5 mm | — |
| Technical Data | ||
| d | — | 120 mm |
| B | — | 38.1 mm |
| R(Min.) | — | 1.5 mm |
| Basic Load Ratings : Cr | — | 109 kN |
| Basic Load Ratings : C0R | — | 75.3 kN |
| Fatigue Load Limit : Cu | — | 3.90 kN |
| Limiting Speeds(Grease Lub.) | — | 3200 min-1 |
| Limiting Speeds(Oil Lub.) | — | 4300 min-1 |
| Load Center Spread : A | — | 58.8 mm |
| Da(Min.) | — | 74 mm |
| Da(Max.) | — | 111.5 mm |
| Ra(Max.) | — | 1.5 mm |
| Mass(Refer.) | — | 1.66 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.