S533/Tr-D Rotor Complete
Tr-groove rotor complete, count window confirmed against your application on the Rieter R36 and R37 semi-automatic platform. Diamond-coated working face. T013 bearing rated to 110,000 rpm with a recommended ceiling of ≤ 105,000 rpm — dimensionally identical to the original, at 40–60% below OEM price.
S533/Tr-D — Complete Specifications
All measurements in millimetres. Every rotor complete assembly is 100% dynamically balanced on our own balancing line before shipment.
Why Tr Groove for Application-Specific Spinning
The Tr groove does not carry a fixed, published count window in our catalogue data. It is matched to the fibre and count of the mill’s own order, and our engineers confirm the pairing before the order is released. The model is selected on the application, so the bearing fit and the count window are confirmed together.
Tr Groove — Yarn Count Range
No published count window for this groove. Send your target count and fibre type and we confirm the correct rotor pairing before quoting. Coating grade and count band are confirmed with the quotation for this rotor.
Tr Groove — Count Confirmed Per Order
Because the usable count window of the Tr groove is not published as a fixed band, this rotor is specified against the application. Send the fibre type, the target Ne and the spinning position, and our engineers confirm the correct groove, cup size and coating — the order is released only after that check. We would rather confirm the pairing than quote from a band the catalogue does not document.
Coating Chosen With the Rotor
The surface coating is confirmed together with the rotor selection, so abrasive fibre and high speeds are planned for.
Defined Bearing Group
The rotor still belongs to a specific bearing group, so machine compatibility is unambiguous.
Quotation Follows the Selection
Lead time and price follow the confirmed selection rather than an assumed one.
Count Matched to Your Application
No fixed band is published, so the rotor is checked against your fibre, target count and spinning position.
What D Means: Base and Working Surface
The trailing letters of the model code are two independent codes, not one word: B is the substrate, D is the working surface. The D in the code is the diamond top layer — the face that takes the fibre and grit contact. On the -BD- models that same layer sits on a boronized base. Ordering rotors, bearings and opening rollers together keeps freight and coating consistent across the spin box.
B = boronized (boron-steel) substrate. A diamond film is only microns thick, so the steel underneath decides whether it survives: a soft substrate deforms under fibre and grit impact and the film cracks and spalls off. The boronized base is the hardening step that keeps the diamond layer intact. This code does not carry the B step; it is the -BD- variant that pairs the diamond layer with the boronized base.
D = diamond top layer, grown on the prepared substrate as a micron-scale film. It takes the fibre and grit contact directly, which is where the wear resistance, the friction coefficient of 0.05–0.1 and the anti-stick behaviour come from that hold the groove profile over long runs. Diamond coating technology of US origin, applied on JSM’s own treatment line.
Which Rieter Machines Use S533/Tr-D?
The T013 bearing fixes this rotor to the Rieter R36 and R37 semi-automatic platform. It is one of 7 rotor models sharing that bearing group.
What to Spin with S533/Tr-D
Typical operating profile for the Tr groove on the Rieter R36 and R37 semi-automatic platform, at speeds up to 110,000 rpm.
✓ Fibre mixes where a cotton groove is uncertain
✓ Replacing a rotor at a known spinning position
✓ Buyers who want the selection checked before ordering
◇ Coarse counts Ne 3–16 — GL groove
◇ Blends and speciality fibres — S groove
◇ Abrasive or high-impurity fibre — DN diamond coating
→ G: Standard (Ne 16–40)
→ T: Narrow (Ne 16–40)
→ TT: Extra narrow (Ne 16–40)
→ S: Special (Ne 16–40)
→ U: General purpose (Ne 10–30)
→ GL: Large (Ne 3–16)
→ See all 7 Rieter R36 and R37 rotor models →
S533/Tr-D — Frequently Asked Questions
Answers to the questions buyers ask most often about this rotor. If yours is not listed, send it with your machine model and current rotor code — we reply within 24 hours.
Is S533/Tr-D compatible with my Rieter R36 and R37 machine?
What does the model code S533/Tr-D mean?
What yarn counts does the Tr groove suit?
What do the letters BD mean in the model code S533/Tr-D?
How much does an OEM-equivalent rotor save versus the original?
Can I order the rotor spindle or rotor cup separately?
Order S533/Tr-D Rotors
Pre-filled: S533/Tr-D · Rieter R36 / R37 · diamond coating
Tell us your quantity and we respond with pricing, lead time and freight options within 24 hours. Sample orders welcome.
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