Rieter Ring Frame Spindle Bolster
For Rieter ring-frame spindle positions.

Rieter Spindle Bolster & Complete Spindle Options
Vindex Industries supplies the selected Rieter spindle bolster and, when ordered, the complete aluminum plug / duralumin sleeve spindle assembly. Blade, plug, tube and wharve specifications below apply to the complete assembly; the bolster-only supply is defined separately in the quotation.
Technical Specifications & Parameters
| Parameter | Technical Specification |
|---|---|
| Spindle type | Aluminum plug / duralumin sleeve construction |
| Tube fitting | Spring-loaded inner grip or centrifugal button grippers, according to design |
| Tube lengths | 160 / 170 / 180 / 190 / 200 / 210 / 220 / 230 mm; custom configuration within 160-250 mm |
| Wharve diameter (Dw) | 18.5 / 19.0 / 20.2 / 22.0 mm; CNC precision turned |
| Ring diameters | 38 / 40 / 42 / 45 / 48 mm; custom profiles by drawing |
| Insert / bolster references | HF 100 / HF 1 / HF 21 / CS 1 / CS 21 / HZ 33 |
| Spindle blade | EN 31 / SAE 52100 / 100Cr6 grade references; specified surface-hardness target 58-62 HRC. Material standard and heat treatment per drawing |
| Standard plug material | HE30-T6 / AA 6082-T6 for series up to 22,000 rpm |
| Premium plug material | HE15 / AA 2014-T6 Duralumin for the 25,000+ rpm series |
| Operating speed | Standard: up to 22,000 rpm. Premium: 25,000+ rpm series with the specified HF 100 assembly; exact maximum rated speed confirmed per configuration |
| Vibration velocity | Customer specification target: <= 0.05 mm/s, under agreed measurement conditions |
| Dynamic balancing | Requested balance grades G 0.4 / G 1.0; test speed, rotor configuration and applicable ISO reference agreed for the assembly |
| Operational noise | Customer specification target: <= 75 dBA; operating speed, load, measurement distance and background noise to be defined |
| Supply scope | Blade, wharve, aluminum plug, bolster insert, mounting flange, nut and spindle lock, as ordered |
Machine Makes & Model References
Rieter ring frames: the primary machine references for this page. Other brands describe separate configurations in the wider Vindex spindle range, not confirmed fitment of this Rieter bolster.
| Machine Make / Type | Model References |
|---|---|
| Rieter ring / compact frames | Rieter G5/1, Rieter G10, Rieter G30, Rieter G32, Rieter G33, Rieter G35, Rieter G36, Rieter G38, Rieter K44, Rieter K45, Rieter K47, Rieter K48 |
Process types
- Cotton: carded, combed and compact ring spinning
- Man-made fibres: polyester, viscose, acrylic and suitable spun-nylon applications
- Blends: polyester/cotton, polyester/viscose and selected wool / worsted blends
Product description
Mills that spin for export buyers often standardise on Rieter — the Swiss maker's G series ring frames and K series compact frames are built for long, stable production runs, and their spindle positions are expected to hold tolerance shift after shift. Vindex Industries, manufacturing in Surendranagar since 1985, supplies replacement spindle bolsters configured for Rieter G and K series positions. Our approach is deliberately conservative: rather than assuming one bolster fits every Rieter variant, we work from your frame model, ring diameter and existing bolster reference, and verify critical dimensions against a sample or drawing before we quote. The bolster itself uses a hardened bearing-steel insert with controlled runout, because on a precision frame a worn or loose bolster shows up quickly as yarn variation and ends-down. Whether you run a handful of frames or a full Rieter line, supply is in mill quantities with export packing, and every batch is checked dimensionally before dispatch.
Application
Ring and compact spinning with the specified tube and drafting / winding configuration. Filament twisting requires its own machine-specific spindle selection.
Key Features & Metallurgy
- Bearing-steel blade with specified heat treatment
- HE30-T6 standard and HE15 / 2014-T6 premium plug options
- Hard-anodised finish where specified
- Dynamic balancing and controlled working dimensions
Advantages
- Lightweight top-part design to reduce rotating mass
- Small-wharve options for matching the tape drive and operating duty; energy savings require a comparative mill test
- Lubrication interval selected for the insert, lubricant and service conditions
- Multi-stage dimensional, hardness, runout and balancing checks as agreed in the inspection plan
Export markets
Vindex Industries manufactures this product in Surendranagar, Gujarat, and exports textile machinery spares to 87 countries — including Bangladesh, Vietnam, Turkey, Indonesia, Pakistan, Egypt, Uzbekistan, Brazil, Mexico and Thailand. Request an export quote.