SKF HN12/SNL bearing mounting / dismounting tool. Precision fitting tool — impact ring set (TMFT), induction heater (TIH), oil-injection dismounting kit (TMOF), hydraulic pull-up nut (HMV), or three-arm mechanical puller (TMMR / TMMD) — used to mount and dismount rolling bearings without damage.
| Type | Bearing mounting / dismounting tool |
| Designation | SKF HN12/SNL |
| HS code | 8205.59 |
| Nose width (Nₖ) | 8 mm |
| Nose height (Nₕ) | 4 mm |
| Thickness (n) | 8 mm |
| Length (L) | 278 mm |
| Working length (l) | 280 mm |
| Height (H) | 96 mm |
| Recommended applications | Special designed tool for tightening/loosening lock nuts in split plummer (pillow) block housings, where space is the limiting factor. Alternative use is general bearing arrangements and of lock nuts on shafts, adapter sleeves, and withdrawal sleeves in a wide variety of applications. |
| Series | Hook spanner, for housings, HN SNL |
| Allows bearing mounting | No |
| Fits on lock nuts inside SKF split pillow block housings (SNL) | Yes |
| Suitable SKF Locknut | KM 12, KMFE 12, KMK 12, N 12 |
| Material | Medium carbon steel, hardened and tempered |
| Material handle | Steel |
| Coating | Black phosphated |
| Colour | Black metallic |
| Country of Manufacturing (COM code) | 35 - Slovenia |
| Product net weight | 0.47 kg |
| eClass code | 23-05-19-01 |
| UNSPSC code | 27111712 |
| Material | As declared by SKF designation suffix |
| Temperature range | Per SKF product data |
| Primary standard | SKF designation convention |
| MOQ | 1 |
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.