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.
Data incomplete
“RNA6918” across 3 loaded brands
The base designation is shared, but too few brands have complete boundary dimensions. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | INARNA6918-ZW-XL105 × 125 × mm | KOYORNA6918Needle roller bearings | IKORNA6918105 × 125 × 63 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | INA | KOYO | IKO |
| Designation | RNA6918-ZW-XL | RNA6918 | RNA6918 |
| Product family | — | Heavy-duty needle roller bearings / Metric series, caged, without inner ring | Machined Type Needle Roller Bearings |
| Detailed type | Radial roller bearing | Needle roller bearings | Needle roller bearings |
| Series | RNA6918 | — | RNA69 |
| Bore diameterd | 105 mm | — | 105 mm |
| Outside diameterD | 125 mm | 125 mm | 125 mm |
| WidthB | — | — | 63 mm |
| Basic dynamic load ratingC | 195 kN | 154 kN | 178 kN |
| Basic static load ratingC0 | 425 kN | 437 kN | 490 kN |
| Fatigue load limitPu | 76 kN | 66 kN | — |
| Reference speednref | 2700 r/min | — | 2400 r/min |
| Limiting speednG | 4400 r/min | 2600 r/min | 4000 r/min |
| Mass≈m | 1.257 kg | 1.5 kg | 1.360006 kg |
| Precision class | — | — | JIS, Class 0 |
| Cage | — | — | Steel |
| Bearing material | — | — | High Carbon Chrome Steel |
| Minimum operating temperatureTmin | -30 °C | — | -20 °C |
| Maximum operating temperatureTmax | 120 °C | — | 120 °C |
| Classification | |||
| Official Category Path | — | Needle roller bearings - Heavy-duty needle roller bearings - Metric series, caged, without inner ring | — |
| Official Classification 1 | — | Needle roller bearings / Heavy-duty needle roller bearings / Metric series, caged, without inner ring | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | 393562 | — | — |
| Official Class Key | — | 090-030-010 | — |
| Base Type | RNA6918 | — | — |
| Old Designation | ["RNA6918-ZW"] | — | — |
| Gpsd Group | I01 | — | — |
| Product Line Id | 09 | — | — |
| X Life Marking | XL | — | — |
| Cad Part Number | — | — | RNA6918 |
| Materials | |||
| Rolling Element Material | — | — | SUJ2 |
| Retainer Material | — | — | Steel |
| Product Identity | |||
| Short Description | Radial roller bearing | — | Machined Type Needle Roller Bearings |
| Long Description | — | — | Machined Type Needle Roller Bearings, High Carbon Steel, Oil Hole |
| Official Bearing Family | — | — | Needle Roller Bearings |
| Official Bearing Type | — | — | Machined Type Needle Roller Bearings |
| Construction | Needle roller bearings RNA, to DIN 617/ISO 1206 | — | — |
| Technical Data | |||
| Rolling Element | — | — | Roller |
| Relubricatable | — | — | Yes |
| Fw | — | 105 mm | — |
| D | — | 125 mm | — |
| C | — | 63 mm | — |
| R(Min.) | — | 1.1 mm | — |
| Basic Load Ratings : Cr | — | 154? kN | — |
| Basic Load Ratings : C0R | — | 437? kN | — |
| Under Roller Diameter (Fw) | 105 mm | — | — |
| Fatigue Load Limit : Cu | — | 66.0 kN | — |
| Outside Diamater (D) | 125 mm | — | — |
| Limiting Speeds(Grease Lub.) | — | 2600 min-1 | — |
| Basic Dynamic Load Rating, Radial (Cr) | 195,000 N | — | — |
| Limiting Speeds(Oil Lub.) | — | 4000 min-1 | — |
| Basic Static Load Rating, Radial (C0R) | 425,000 N | — | — |
| (Refer.)Mass | — | 1.500? kg | — |
| Operating Temperature Min. (Tmin) | -30 °C | — | — |
| Mass(Refer.) | — | 1.500? kg | — |
| Limiting Speed For Grease Lubrication (Ng Grea) | 2,650 1/min | — | — |
| Operating Temperature Max. (Tmax) | 120 °C | — | — |
| Limiting Speed (Limiting Spe) | 4,400 1/min | — | — |
| Reference Speed (Nϑr) | 2,700 1/min | — | — |
| Width, Outer Ring (C) | 63 mm | — | — |
| Minimum Chamfer Dimension (Rmin) | 1.1 mm | — | — |
| Fatigue Load Limit, Radial (Cur) | 76,000 N | — | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.