Product Description
10122105 Jack F4 Oil Seal
This oil seal keeps lubricant contained around the main shaft, preventing leaks at the seal point while the shaft rotates continuously.
Fits
- Jack F4 industrial single needle sewing machine
Why Replace It
A worn oil seal lets lubricant seep out around the shaft, leading to internal oil loss and external staining near the seal location.
FAQ
I see oil around the shaft area — is this the fix?
Yes, a worn oil seal at the shaft is the most common cause of localized oil leakage around that specific area.
