NFS Freewheel One-Way Bearings — Sizes & Specifications
The NFS series is a freewheel clutch for one-way drive duty — indexing feeds, backstops that stop reverse rotation, and overrunning drives in conveyors, packaging and agricultural machinery. The table lists the representative bore sizes we handle regularly. BPK supplies the NFS series factory-direct from Yandian, Shandong, for importers, distributors and OEM buyers.
Standard sizes
| Model | Bore d (mm) | |
|---|---|---|
| NFS8 | 8 | Inquiry |
| NFS10 | 10 | Inquiry |
| NFS12 | 12 | Inquiry |
| NFS15 | 15 | Inquiry |
| NFS17 | 17 | Inquiry |
| NFS20 | 20 | Inquiry |
| NFS25 | 25 | Inquiry |
| NFS30 | 30 | Inquiry |
| NFS35 | 35 | Inquiry |
| NFS40 | 40 | Inquiry |
| NFS45 | 45 | Inquiry |
| NFS50 | 50 | Inquiry |
| NFS55 | 55 | Inquiry |
| NFS60 | 60 | Inquiry |
| NFS70 | 70 | Inquiry |
| NFS80 | 80 | Inquiry |
Model notation identifies a family, not a fixed size. Please confirm bore diameter, outer diameter, overall length, mounting, sealing, material, and load requirements with your drawing.
Every model above links straight to the inquiry form with the model prefilled — send your quantity and destination, and we prepare the quotation.
Options & matching parts
CSK and CKA cover the smaller freewheel range; DC sprag inserts suit custom housings. Send your shaft size and the duty — indexing, backstop or overrunning — and we confirm the full specification before quoting.
Ordering from BPK
Samples first if you need to check fit and quality; bulk and OEM orders (your logo, your box) supported. MOQ from 1 piece on standard sizes.
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