Same-model Comparison
Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
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You entered 4388-35-9. This table explores the base group 4388; it does not preserve or approve every requested suffix. Search your complete marking first →
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.
“4388” 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.
Brand differences at a glance
| Parameter | TIMKEN4388 / 432841.275 × 90.043 × 39.688 mm | KOYO4388/3541.275 × 90.488 × 40.386 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 4388 / 4328 | 4388/35 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | 4300 | — |
| Bore diameterd | 41.275 mm | 41.275 mm |
| Outside diameterD | 90.043 mm | 90.488 mm |
| WidthB | 39.688 mm | 40.386 mm |
| Basic dynamic load ratingC | 199 kN | 166 kN |
| Basic static load ratingC0 | 204 kN | 169 kN |
| Fatigue load limitPu | — | 25.9 kN |
| Limiting speednG | — | 4500 r/min |
| Mass≈m | 1.24 kg | 1.229 kg |
| Calculation Factors | ||
| K Factor | 2.05 | — |
| Y1 Factor | 2.11 | — |
| Y2 Factor | -1.00 | — |
| Y0 Factor | 1.16 | — |
| E Factor | 0.28 | — |
| Cg Factor | 0.0872 | — |
| 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 | 100026467100014661 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | 4388 / 4328 | — |
| Inner Ring Part Number | 4388 | — |
| Outer Ring Part Number | 4328 | — |
| 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 | — | 90.488 mm |
| Overall Width | 41.886 mm | — |
| T | — | 39.688 mm |
| Radial Rating | 51,500 N | — |
| B | — | 40.386 mm |
| Axial Rating | 25,100 N | — |
| C | — | 33.338 mm |
| Dynamic Rating C1 | 199,000 N | — |
| R(Min.) | — | 3.6 mm |
| Dynamic Rating C90 | 51,500 N | — |
| R1(Min.) | — | 3.2 mm |
| Dynamic Axial Rating Ca90 | 25,100 N | — |
| Basic Load Ratings : Cr | — | 166 kN |
| Dynamic Axial Rating Ca1 | 96,700 N | — |
| Basic Load Ratings : C0R | — | 169 kN |
| Static Radial Rating C0 | 204,000 N | — |
| Fatigue Load Limit : Cu | — | 25.9 kN |
| Extended Dynamic Rating Ce | 0 N | — |
| Limiting Speeds(Grease Lub.) | — | 4500 min-1 |
| Static Axial Rating C0A | 169,000 N | — |
| Limiting Speeds(Oil Lub.) | — | 6000 min-1 |
| Load Center Spread : A | — | 25.6 mm |
| Constant :E | — | 0.28 |
| Axial Load Factors : Y1 | — | 2.11 |
| Axial Load Factors : Y0 | — | 1.16 |
| Da | — | 77.0 mm |
| Db | — | 85.0 mm |
| Ra(Max.) | — | 3.6 mm |
| Rb(Max.) | — | 3.2 mm |
| Mass(Refer.) | — | 1.229 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.