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.
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One base designation across loaded brands
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Data incomplete
“81218” across 2 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 | SKF81218 TN90 × 135 × mm | INA81218-M90 × 135 × 35 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | INA |
| Designation | 81218 TN | 81218-M |
| Product family | Cylindrical roller thrust bearings | — |
| Detailed type | Single row cylindrical roller thrust bearing, single direction | Axial cylindrical roller bearing |
| Series | — | 81218 |
| Bore diameterd | 90 mm | 90 mm |
| Outside diameterD | 135 mm | 135 mm |
| WidthB | — | 35 mm |
| HeightH | 35 mm | — |
| Basic dynamic load ratingC | 232 kN | — |
| Basic static load ratingC0 | 865 kN | — |
| Fatigue load limitPu | 90 kN | — |
| Reference speednref | 1000 r/min | 1120 r/min |
| Limiting speednG | 2000 r/min | 2550 r/min |
| Mass≈m | 1.77 kg | 1.72 kg |
| Cage | Non-metallic | — |
| Bearing material | Bearing steel | — |
| Minimum operating temperatureTmin | — | -30 °C |
| Maximum operating temperatureTmax | — | 120 °C |
| Engineering — Abutment dimensions | ||
| Abutment diameter shaftd a | min. 129 mm | — |
| Abutment diameter housingD a | max. 95 mm | — |
| Fillet radiusr a | max. 1.1 mm | — |
| Engineering — Calculation data | ||
| Minimum axial load factorA | 0.06 | — |
| Engineering — Dimensions | ||
| Outside diameter shaft washerd 1 | 135 mm | — |
| Bore diameter housing washerD 1 | 93 mm | — |
| Height shaft washerB | 10.5 mm | — |
| Chamfer dimension housing washerr 1,2 | min. 1.1 mm | — |
| Engineering — Included products | ||
| Roller and cage thrust assembly | K 81218 TN | — |
| Shaft washer | WS 81218 | — |
| Housing washer | GS 81218 | — |
| Logistics | ||
| Product net weight | 1.77 kg | — |
| UNSPSC code | 31171505 | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 395893 |
| Base Type | — | 81218 |
| Gpsd Group | — | I02 |
| Product Line Id | — | 63 |
| X Life Marking | — | n.r. |
| Product identity | ||
| Official product category | Cylindrical roller thrust bearings | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/cylindrical-roller-thrust-bearings | — |
| Structure group ID | BGS_001_002_003 | — |
| Available from SKF | Yes | — |
| Remanufacturable | No | — |
| Product Identity | ||
| Construction | — | Axial cylindrical roller bearing 812..-M, single row |
| Short Description | — | Axial cylindrical roller bearing |
| Properties | ||
| Bearing part | Complete bearing | — |
| Axial load capability | Single-direction | — |
| Number of rows | 1 | — |
| Tolerance class | Normal | — |
| Material, bearing | Bearing steel | — |
| Coating | Without | — |
| Indicative carbon footprint for new product | 6.5 kg CO 2 e | — |
| Technical Data | ||
| Bore Diameter (D) | — | 90 mm |
| Outside Diameter (D) | — | 135 mm |
| Width (B) | — | 35 mm |
| Basic Dynamic Load Rating, Axial (Ca) | — | 240,000 N |
| Basic Static Load Rating, Axial (C0A) | — | 690,000 N |
| Operating Temperature Min. (Tmin) | — | -30 °C |
| Minimum Diameter Shaft Shoulder (Da) | — | 129 mm |
| Operating Temperature Max. (Tmax) | — | 120 °C |
| Limiting Speed (Ng) | — | 2,550 1/min |
| Reference Speed (Nϑr) | — | 1,120 1/min |
| Maximum Recess Radius (Ra Max) | — | 1.1 mm |
| Maximum Diameter Of Housing Shoulder (Da) | — | 95 mm |
| Rip Diameter Shaft Washer (D1) | — | 135 mm |
| Bore Diameter Housing Washer (D1) | — | 93 mm |
| Minimum Chamfer Dimension (Rmin) | — | 1.1 mm |
| Fatigue Load Limit, Axial (Cua) | — | 74,000 N |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.