SKF HN20/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 HN20/SNL |
| HS code | 8205.59 |
| Nose width (Nₖ) | 10 mm |
| Nose height (Nₕ) | 5 mm |
| Thickness (n) | 10 mm |
| Length (L) | 323 mm |
| Working length (l) | 325 mm |
| Height (H) | 148 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 20, KMFE 20, KMK 20, KMT 19, KMT 20, AN 20, AN 21 |
| 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 | 0.898 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.