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.
Dimensions differ
“25880” across 2 loaded brands
The base designation is shared, but the loaded boundary dimensions do not agree. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | TIMKEN25880 / NP64032436.487 × 73.025 × 23.813 mm | KOYO25880R/2136.487 × 73.025 × 24.608 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 25880 / NP640324 | 25880R/21 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | 25800 | — |
| Bore diameterd | 36.487 mm | 36.487 mm |
| Outside diameterD | 73.025 mm | 73.025 mm |
| WidthB | 23.813 mm | 24.608 mm |
| Basic dynamic load ratingC | 85.1 kN | 90.1 kN |
| Basic static load ratingC0 | 97.4 kN | 87.3 kN |
| Fatigue load limitPu | — | 13.1 kN |
| Limiting speednG | — | 5600 r/min |
| Mass≈m | 0.45 kg | 0.459 kg |
| Calculation Factors | ||
| K Factor | 2.01 | — |
| Y1 Factor | 2.07 | — |
| Y2 Factor | -1.00 | — |
| Y0 Factor | 1.14 | — |
| E Factor | 0.29 | — |
| Cg Factor | 0.0695 | — |
| Classification | ||
| Official Category Path | — | Tapered roller bearings - Single-row - Inch series |
| Official Classification 1 | — | Tapered roller bearings / Single-row / Inch series |
| Manufacturer Identity | ||
| Material Number | 100049611100130145 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | 25880 / NP640324 | — |
| Inner Ring Part Number | 25880 | — |
| Outer Ring Part Number | NP640324 | — |
| Official Source System | TS_PREPAIR | — |
| Official Last Run | 2026-08-23T00:00:00 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 73.025 mm |
| Overall Width | 26.908 mm | — |
| T | — | 23.812 mm |
| Radial Rating | 22,100 N | — |
| B | — | 24.608 mm |
| Axial Rating | 11,000 N | — |
| C | — | 19.050 mm |
| Dynamic Rating C1 | 85,100 N | — |
| R(Min.) | — | 1.6 mm |
| Dynamic Rating C90 | 22,100 N | — |
| R1(Min.) | — | 0.8 mm |
| Dynamic Axial Rating Ca90 | 11,000 N | — |
| Basic Load Ratings : Cr | — | 90.1 kN |
| Dynamic Axial Rating Ca1 | 42,300 N | — |
| Basic Load Ratings : C0R | — | 87.3 kN |
| Static Radial Rating C0 | 97,400 N | — |
| Fatigue Load Limit : Cu | — | 13.1 kN |
| Extended Dynamic Rating Ce | 0 N | — |
| Limiting Speeds(Grease Lub.) | — | 5600 min-1 |
| Static Axial Rating C0A | 82,400 N | — |
| Limiting Speeds(Oil Lub.) | — | 7400 min-1 |
| Load Center Spread : A | — | 15.8 mm |
| Constant :E | — | 0.29 |
| Axial Load Factors : Y1 | — | 2.07 |
| Axial Load Factors : Y0 | — | 1.14 |
| Da | — | 65.0 mm |
| Db | — | 68.0 mm |
| Ra(Max.) | — | 1.6 mm |
| Rb(Max.) | — | 0.8 mm |
| Mass(Refer.) | — | 0.459 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.