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We have *professional and experienced engineer team *Advanced production and inspection equipment*Powerful quality control system *Professional customer service Based on our professional service,high
1 Years
| Ask Lasest Price | |
| Brand Name : | Qingdao Sande Tech Co.,Ltd |
| Model Number : | OEM |
| Certification : | ISO, DIN, AISI, ASTM, BS, JIS, etc. |
| Price : | $0.5-2 |
| Payment Terms : | D/P,T/T,Western Union |
| Supply Ability : | 10000PCS/month |
| Delivery Time : | 30 days |
Stainless Steel Ring Sleeve, Bearing Tube, Flange Sleeve Are Processed By CNC
Product Overview
CNC-machined stainless steel ring sleeves, bearing tubes, and
flange sleeves with high precision, durability, and corrosion
resistance for industrial applications.
Key Features
Typical Uses
CNC-Machined Stainless Steel Components – Technical Parameters
| Parameter | Ring Sleeve | Bearing Tube | Flange Sleeve |
|---|---|---|---|
| Material | SS 304/316/316L | SS 304/316/316L | SS 304/316/316L |
| Outer Diameter | 10–200 mm (±0.05 mm) | 5–150 mm (±0.03 mm) | 20–300 mm (±0.1 mm) |
| Inner Diameter | 5–180 mm (±0.05 mm) | 4–140 mm (±0.03 mm) | 15–280 mm (±0.1 mm) |
| Length/Thickness | 5–100 mm (±0.1 mm) | 10–500 mm (±0.1 mm) | 5–50 mm (±0.2 mm) |
| Surface Finish | Ra 0.8–3.2 μm | Ra 0.8–3.2 μm | Ra 1.6–6.3 μm |
| Tolerance | ISO 2768-medium | ISO 2768-fine | ISO 2768-medium |
| Hardness | 150–200 HB | 160–220 HB | 150–190 HB |
| Max. Temperature | 800°C (1472°F) | 800°C (1472°F) | 800°C (1472°F) |
| Process | CNC Turning/Milling | CNC Turning | CNC Turning/Milling |
| Certifications | ISO 9001, RoHS | ISO 9001, RoHS | ISO 9001, RoHS |
FAQ
1. What materials do you use?
We primarily use 304, 316, and 316L stainless steel for corrosion resistance and durability. Other grades (e.g., 303, 17-4PH) are available upon request.
2. What tolerances can you achieve?
Standard: ±0.05–0.1 mm (ISO 2768-medium/fine).
Tighter tolerances (e.g., ±0.01 mm) are possible for critical dimensions.
3. Can you customize parts?
Yes! We offer:
Custom sizes, thicknesses, and hole patterns.
Special surface finishes (e.g., mirror polish, sandblasting).
Additional features (threads, grooves, knurling).
4. What’s the lead time?
Bulk orders: 30–45 days (depends on quantity).
5. How do you ensure quality?
CNC machining with ISO 9001-certified processes.
Dimensional checks (CMM, calipers) and surface finish testing.
Material certifications (MTRs) provided.
6. Are your parts corrosion-resistant?
Yes! Stainless steel (especially 316/L) offers excellent resistance to rust, chemicals, and high temperatures (up to 800°C/1472°F).
7. What industries do you serve?
Common applications include:
Automotive (bushings, bearings).
Aerospace (flange connectors).
Hydraulics/Pneumatics (seal sleeves).
8. Do you provide coatings or treatments?
Options include:
Passivation (enhanced corrosion resistance).
Electropolishing (smoother surface).
Heat treatment (for hardness).
9. What’s the minimum order quantity (MOQ)?
Bulk orders: 1000 pieces Negotiable (discounts for large quantities).
10. How do I request a quote?
Send us:
Drawings (CAD/PDF preferred).
Material, quantity, and surface finish requirements.
Contact us at [Your Email/Phone] for a fast response!
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