Cross-brand designation analysis
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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 verified
“NJ428” across 2 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | TIMKENNJ428MAC4140 × 360 × 82 mm | KOYONJ428140 × 360 × 82 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | NJ428MAC4 | NJ428 |
| Product family | Cylindrical 1-Row | Single-row / NJ |
| Detailed type | Cylindrical roller bearings | Cylindrical roller bearings |
| Series | NCS-141211 | — |
| Bore diameterd | 140 mm | 140 mm |
| Outside diameterD | 360 mm | 360 mm |
| WidthB | 82 mm | 82 mm |
| Basic dynamic load ratingC | 1080 kN | 1090 kN |
| Basic static load ratingC0 | 1160 kN | 1020 kN |
| Fatigue load limitPu | — | 124 kN |
| Limiting speednG | — | 1600 r/min |
| Mass≈m | 47 kg | 47.2 kg |
| Sealing | Open | — |
| Cage | Window Brass cage | — |
| Calculation Factors | ||
| K Factor | 0.00 | — |
| Y1 Factor | 0.00 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.00 | — |
| E Factor | 0.00 | — |
| Cg Factor | 0.1237 | — |
| Classification | ||
| Official Category Path | — | Cylindrical roller bearings - Single-row - NJ |
| Official Classification 1 | — | Cylindrical roller bearings / Single-row / NJ |
| Manufacturer Identity | ||
| Material Number | 000000000190080968 | — |
| Official Class Key | — | 040-010-000 |
| World Assembly Part Number | NJ428MA | — |
| Inner Ring Part Number | 140ARJA04 | — |
| Outer Ring Part Number | 140ERUA04 | — |
| Drawing Number | M961918 | — |
| Upc | 0013992476333 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.403 | — |
| Product Identity | ||
| Type Description | Cylindrical 1-Row | — |
| Construction | Single Row Cylindrical Roller Bearing | Imperial Series | 5.5118 in Bore | 14.1732 in OD | 3.2283 in Width | Open | Cylindrical Bore | Machined Window Brass Cage | C4 Clearance | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 360 mm |
| B | — | 82 mm |
| R(Min.) | — | 5 mm |
| R1(Min.) | — | 5 mm |
| Overall Width | 0.000 mm | — |
| Fw | — | 198 mm |
| Radial Rating | 1,080,000 N | — |
| Ew | — | - mm |
| Axial Rating | 0 N | — |
| Basic Load Ratings : Cr | — | 1090 kN |
| Dynamic Rating C1 | 1,080,000 N | — |
| Basic Load Ratings : C0R | — | 1020 kN |
| Dynamic Rating C90 | 0 N | — |
| Fatigue Load Limit : Cu | — | 124 kN |
| Dynamic Axial Rating Ca90 | 0 N | — |
| Limiting Speeds(Grease Lub.) | — | 1600 min-1 |
| Dynamic Axial Rating Ca1 | 0 N | — |
| Limiting Speeds(Oil Lub.) | — | 2200 min-1 |
| Static Radial Rating C0 | 1,160,000 N | — |
| Sd1 | — | - mm |
| Extended Dynamic Rating Ce | 0 N | — |
| B1 | — | - mm |
| Static Axial Rating C0A | 0 N | — |
| B2 | — | - mm |
| Da(Min.) | — | - mm |
| Db(Min.) | — | - mm |
| Db(Max.) | — | - mm |
| Dc(Min.) | — | - mm |
| Dd(Min.) | — | - mm |
| Da(Max.) | — | 340 mm |
| Ra(Max.) | — | 4 mm |
| Rb(Max.) | — | 4 mm |
| Mass(Refer.) | — | 47.2 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.