SKF SK138 withdrawal sleeve. Tapered sleeve installed between a stepped shaft shoulder and a tapered-bore bearing, then pushed on by a lock nut against the shaft shoulder. Designed to dismount the bearing hydraulically (oil-injection groove and thread) — no puller required. Standard series AH / AHX. Dimensioned to ISO 113.
| Type | Withdrawal sleeve |
| Designation | SKF SK138 |
| HS code | 8483.30 |
| Bore diameter | 170 mm |
| Width | 160 mm |
| Thread designation | 8.191X8 |
| Taper | 1:12 |
| Holes for oil injection | Without |
| Product net weight | 10.4 kg |
| eClass code | 23-11-07-05 |
| UNSPSC code | 31163218 |
| 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.