SKF TMMK20-50 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 TMMK20-50 |
| HS code | 8205.59 |
| Workpiece depth (max) | Dismounting: with arms A2: 135 mm |
| A3 | 137 mm |
| A4 | 162 mm |
| A5 | 167 mm |
| A6 | 170 mm;Mounting: with Sleeve B: 221mm, C:226 mm |
| Total Arm length | Arm A2: 189 mm;Arm A3: 193 mm;Arm A4: 226 mm;Arm A5: 231 mm;Arm A6: 236 mm |
| Effective spindle length | Spindle S1: 214 mm;Spindle S2: 214 mm |
| Total spindle length | Spindle S1: 275 mm;Spindle S2: 288 mm |
| Spindle head, hexagon size | Spindle S1: 19 mm;Spindle S2: 24 mm |
| Sleeve outer lengths | B: 235 mm;C: 245 mm |
| Sleeve, outer diameter | B: 45 mm;C: 66 mm |
| Hammer length | 12.4016 in |
| Hammer width | 4.5276 in |
| Case dimensions (l x h x w) | 530 x 110 x 360 mm |
| Recommended applications | For manual mounting of bearings, bushings, seals, rings, pulleys in industrial, construction and agricultural applications;For dismounting of SKF DGBB's from various applications with straight shafts and or housings. |
| Mounting force generation | Hammer |
| Suitable for workpiece mounting on a Cylindrical seating (straight shaft) | Yes |
| Suitable for bearing mounting on a Tapered seating (conical shaft) | Not recommended |
| Suitable for bearing mounting on a Sleeve (adapter or withdrawal) | Not recommended |
| Suitable for workpiece mounting in a Blind arrangement (housing with shaft) | Yes |
| Suitable for workpiece mounting in a Housing | Yes |
| Dismounting force generation | Mechanical spindle or Sliding hammer |
| Suitable for workpiece dismounting from a Cylindrical seating (straight shaft) | Yes |
| Suitable for bearing dismounting from a Tapered seating (conical shaft) | No |
| Suitable for bearing dismounting from a Sleeve (adapter or withdrawal sleeve) | No |
| Suitable for workpiece dismounting from a Blind arrangement (housing with shaft) | Yes |
| Suitable for workpiece dismounting from a Housing | Yes |
| Suitable for bearing type(s) | Mounting: All types;Dismounting SKF Deep Groove Ball Bearings (DGBB's) |
| Number of arms | 5 sets of 3, named A2 to A6 |
| Number of rings | 36 |
| Models of rings | 2, named B and C |
| Number of sleeves | 2, named B and C |
| Total number of spindles in kit | 2 |
| Spindle nose piece | No |
| Hammer type | Dead blow hammer |
| Hammer weight | 2 lb |
| Hammerhead | Sturdy polyurethane (PU) preventing damage to the sleeve heads |
| Material | Rings: Impact resistant polyamide (PA);Sleeve material: Glassfiber filled polyamide (PA);Hammer: Steel,PU;Puller: Medium carbon steels and alloy engineering steels, black phosphated, hardened and tempered |
| Colour | Hammer: Black/Blue;Puller: Black metallic;Rings: Black;Sleeves: Black |
| Content | 5x sets of 3 arms, size A1 to A5;2x spindles, size S1 and S2;1x Spindle holder;1x Sliding hammer;12x Impact rings sizes B and 9x Impact rings size C;Impact sleeves sizes B and C;1x Dead blow hammer;6x Spindle support rings;1x printed Instruction for Use (language free);1x Carrying case (size C) |
| Country of Manufacturing (COM code) | 35 - Slovenia |
| Product net weight | 8.5 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.