B174DN Solid Ring — B174 Tooth Profile Clothing Ring
One-piece clothing ring in the B174 tooth profile with a DN diamond-nickel working surface (HV 1000-1200). A direct replacement for Schlafhorst Autocoro SE8-SE20 and Rieter R40/R60/R66 (NG64) opening rollers, matched to carded cotton and flax programmes.
B174DN — Complete Specifications
One-piece integrated clothing ring for the combing roller (opening roller) assembly. Values below describe the ring itself; the correct configuration for your machine is confirmed against your machine model.
Why B174 for Carded Cotton and Flax Programmes
B174 is the cotton-side workhorse of the JSM solid ring range. Its tooth spacing opens carded cotton and flax blends cleanly at full combing roller speed, without stripping the fibre or loading the tooth band.
Open, don’t tear — why the B174 profile stays stable on natural fibre
The tooth band is cut as one piece with the ring body, so the profile runs true at 7,500-9,000 rpm combing roller speed instead of drifting out of round. That matters most on carded cotton, where a tooth band that has lost its concentricity shows up first as a rising yarn CV% and more end breaks.
Cotton-tuned tooth geometry
Spacing and rake set for carded cotton and flax blends — opens the sliver without stripping short fibre out of the strand.
One-piece concentricity
Ring and tooth band machined as a single part. No pressed-in or welded band to run out of true at speed.
Flax blends handled
Also the right profile where flax is blended in — the fibre most likely to choke a synthetic-oriented tooth type.
Viscose-acceptable
Combed cotton and viscose run acceptably on B174. For a viscose-heavy programme, tell us and we will confirm the better profile.
What DN Means on a JSM Solid Ring
Every ring in this range carries a DN working surface: diamond grit co-deposited inside a nickel matrix, HV 1000-1200. The earlier plain-nickel tooth types have been withdrawn — catalogue numbers ending in N are no longer produced or quoted.
Diamond grit is co-deposited inside a nickel matrix rather than simply plated on top. The result is a hard, low-friction working surface that holds its tooth form far longer than plain nickel on abrasive fibre, keeps the tooth tips from loading up with fibre and dust, and holds concentricity across a longer service interval.
The earlier plain-nickel tooth types are no longer produced, and catalogue numbers ending in N are not quoted. Order the DN version of the same tooth profile instead: identical tooth geometry and fit, with the diamond-nickel working surface. If you are holding stock of an N-type ring, send us the number and we will cross it to the current DN equivalent.
Which Machines Use B174DN?
The same tooth profile is supplied in both machine platforms. The part number differs, so quote your machine model with the enquiry and we supply the matching configuration.
Running Taitan, Jingwei, Rifa or Saurer machines? The solid ring range in this catalogue is built for the Schlafhorst and Rieter platforms listed above, so we will not claim it fits a machine we have not checked. Send us the machine model and the part you are replacing and we will confirm whether a ring from this range fits, or supply the correct opening-roller component.
What to Spin with B174DN
B174 is selected for its fibre, not by machine brand — the same profile is supplied in a Schlafhorst and a Rieter NG64 configuration.
All 7 Tooth Profiles — Where B174DN Sits
Every profile in the range is DN coated and covers Schlafhorst Autocoro SE8–SE20. B-series profiles are cotton and natural-fibre oriented, S-series profiles are built for synthetics. Your current model is highlighted.
| Tooth Profile | Coating | Fibre Direction | Page |
|---|---|---|---|
| B174 / B174-2 | DN | Carded cotton and flax blends (best); combed cotton, viscose (OK); not for P/C or synthetic blends | View page |
| B187 | DN | Combed cotton, viscose (best); blends (OK); not for carded cotton, acrylic or flax | On request |
| B300 | DN | Newer tooth type — application data under confirmation | View page |
| OB20 (B20) | DN | Carded and combed cotton, flax blends (best); viscose (OK); not for pure synthetic fibres | View page |
| OS21 (S21) | DN | Polyester, viscose, acrylic and P/C blends (best); cotton (OK); not for flax | View page |
| S43 | DN | Polyester, P/C and P/V blends (best); not for cotton, viscose, acrylic or flax | On request |
| OK61 | DN | Newer tooth type — application data under confirmation | On request |
Rieter R40 / R60 / R66 machines take the same tooth profile in a separate NG64 configuration. It is not interchangeable with the Schlafhorst ring even though the tooth geometry looks identical, so quote your machine model with the enquiry and we will supply the matching configuration.
B-series tooth types suit cotton and natural fibres; S-series tooth types suit synthetics. Where a profile needs its fibre recommendation confirmed against your own schedule we say so rather than publish a general claim. Not sure which profile you are running? Send a photo of the worn ring and the machine model and we will identify it.
B174DN — Frequently Asked Questions
The questions mills ask most often about this ring. Anything not covered here, ask directly — we answer with the part number and the price, not a brochure.
What is a solid ring (clothing ring) and where does it fit?
Which machines does B174DN fit?
What does DN mean in B174DN?
Is the Rieter version the same ring as the Schlafhorst version?
My mill runs both cotton and polyester. Can one ring cover it?
When should the ring be replaced, and how do I order?
Send Us Your Machine Model and Fibre Mix
Pre-filled: B174DN · B174 tooth profile
Tell us your machine model, the ring position and your fibre mix. We confirm the profile, price and lead time within 24 hours. Sample orders welcome.
No spam · Your information stays private · Leo Wang replies personally