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SKU:
NLT1H00361
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Foredom S-93 Inner Shaft & S-77 Outer Sheath Set for Flex Shaft Motors
$55.99
In Stock
$55.99
Sale price
$55.99
Regular price
Replace both wear pieces in a compatible Foredom flex-shaft drive with a 39-inch S-93 inner shaft and S-77 outer sheath set.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Foredom M.SR, SRM, and SRB
- Foredom M.TX, TXM, and TXB
- Foredom M.LX, LXM, and LXB
- Older Foredom M.L, LM, and LB
- Foredom PG
- Older Foredom S, SM, and SB
- Foredom CC, MM, and DD
- Foredom R and RB
- Foredom K
- Foredom 500
- Foredom 900 and 990
Product Overview
A flex shaft that chatters, heats up, binds, or stops driving the handpiece may have a dry, kinked, or frayed inner cable. Replacing the shaft and sheath together gives the new cable a clean path and helps avoid putting a fresh shaft inside a damaged housing.
This combination fits many standard key-tip Foredom motors, but not every Foredom drive. It is not for H-series square-drive, J-series slip-joint, or the S-76N PowerGraver sheath.
This is an aftermarket replacement part and is not manufactured or supplied by the original equipment brand.
Key Features & Performance
- Includes S-93 inner shaft and S-77 outer sheath
- 39-inch nominal inner-shaft length
- Restores smooth power transfer on compatible flex-shaft motors
- Useful when the old sheath is kinked, worn, or contaminated
Replaces Part Numbers
- S-93 inner shaft
- S-77 outer sheath
Common Uses
- Repairing a flex shaft that binds or runs hot
- Replacing a frayed or broken inner cable
- Replacing a kinked outer sheath
- Refreshing an older rotary-tool drive during handpiece service
Technical Specifications
- Product Type: Flexible inner shaft and outer sheath set
- Inner Shaft Length: 39 inches nominal
- Outer Sheath Length: Approximately 36-1/4 inches
- Drive Style: Standard compatible Foredom key-tip system
Installation & Fitment
- Unplug the motor before removing the shaft
- Clean old grease and debris from the motor connector and handpiece
- Apply only a light, even coat of approved shaft lubricant
- Keep lubricant away from the final handpiece-end section
- Seat both ends fully and test at low speed before normal use
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Model names alone may not guarantee fitment. Compare the original component, reference number, connector or mounting design, dimensions, and any serial-number or production-date break before purchase.
Frequently Asked Questions
Q: Does this fit an H-series square-drive unit? A: No. H-series square-drive systems use different parts.
Q: Should the inner shaft be heavily greased? A: No. Too much grease can migrate into the handpiece and cause heat or slipping.
Q: Why replace the sheath too? A: A kinked or worn sheath can quickly damage a new inner shaft.
Part Summary
keywords: Foredom S-93 inner shaft, S-77 flex shaft sheath, 39 inch rotary shaft cable, Foredom SR replacement cable, Foredom TX flexible shaft repair, jewelry tool flexshaft parts
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.