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.
Data incomplete
“KM31” 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 | SKFKM 31155 × 200 × 25 mm | FAGKM31Locknut |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | FAG |
| Designation | KM 31 | KM31 |
| Product family | Lock nuts | — |
| Detailed type | Lock nut with metric thread, for locking by lock washer | Locknut |
| Bore diameterd | 155 mm | — |
| Outside diameterD | 200 mm | — |
| WidthB | 25 mm | 25 mm |
| Mass≈m | 2.15 kg | 2.42 kg |
| Additional information | ||
| Axial load capacity, staticF | — | 630,000 N |
| Axial load capacity, staticF | — | 141,636.691 lbf |
| Fuse | — | MB31 |
| Chamfer angle | — | 30 ° |
| Dimensions | ||
| Thread designation | M155x3 | — |
| Engineering — Associated products | ||
| Locking device | Lock washer | — |
| Engineering — Calculation data | ||
| Axial static load carrying capacity | 540 kN | — |
| Engineering — Dimensions | ||
| ThreadG | M155x3 | M155x3 |
| Diameter locating side faced 1 | 182 mm | — |
| Width locating slotb | 16 mm | — |
| Depth locating sloth | 7 mm | — |
| Engineering — Mounting information | ||
| Associated spanner | TMFN 30-40 | — |
| Logistics | ||
| Product net weight | 2.15 kg | — |
| eClass code | 23-11-07-05 | — |
| UNSPSC code | 31163218 | — |
| Main Dimensions & Performance Data | ||
| Outerside diameterd2 | — | 200 mm |
| Outerside diameterd2 | — | 7.874 in |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 418301 |
| Base Type | — | KM31 |
| Gpsd Group | — | F09 |
| Product Line Id | — | 79 |
| X Life Marking | — | n.r. |
| SAP material number | — | 0190041500000 |
| Base product | — | 23110822ZZ_NoSuffix |
| Mounting dimensions | ||
| Chamfer diameterd1 | — | 182 mm |
| Chamfer diameterd1 | — | 7.165 in |
| Width retaining slotb | — | 16 mm |
| Width retaining slotb | — | 0.63 in |
| Height retaining sloth | — | 7 mm |
| Height retaining sloth | — | 0.276 in |
| Product identity | ||
| Official product category | Lock nuts | — |
| Official taxonomy path | /products/rolling-bearings/accessories/lock-nuts/keyway | — |
| Structure group ID | ANL_001 | — |
| Available from SKF | Yes | — |
| Remanufacturable | No | — |
| Product Identity | ||
| Construction | — | Locknuts KM, main dimensions to DIN 981 |
| Short Description | — | Locknut |
| Properties | ||
| Nut for hydraulic mounting | No | — |
| Associated mounting tool | TMFN 30-40 | — |
| Technical Data | ||
| Total Width (B) | — | 25 mm |
| Outside Diameter Nut (D2) | — | 200 mm |
| Axial Load Capacity, Static (F) | — | 630,000 N |
| Width Retaining Slot (B) | — | 16 mm |
| Champfer Angle (Champfer Ang) | — | 30 ° |
| Chamfer Diameter (D1) | — | 182 mm |
| Height Retaining Slot (H) | — | 7 mm |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.