OEM CNC Machining Turning Threaded Sleeve Knurled Spacer Steel Shaft Sleeve Bushing for Tube Connector
Product Description
Key Features and Performance Advantages
Steel-backed bronze bushings are renowned for their superior performance characteristics:
* High Load and Impact Strength: These bushings can support high dynamic loads (up to 140 N/mm²) and are resilient against shock and vibratory loads, making them ideal for heavy machinery.
* Excellent Wear Resistance and Low Friction: The bronze lining provides a low-friction surface, with a coefficient of friction typically ranging from 0.04 to 0.15 under oil or grease lubrication, reducing power loss and improving efficiency.
* Wide Temperature Range: They operate effectively in temperatures up to 150°C with grease and up to 250°C with oil lubrication.
* Customizability: Bushings can be designed with various lubrication features (grooves, oil holes) and are available in different types, including flange bimetal bushes for axial positioning and thrust washers.
* Material and Cost Efficiency: Compared to some traditional methods like centrifugal casting, the sintered bimetal process can create a more uniform alloy layer thickness, saving material and improving cost-performance.
1. Metal machining parts strictly according to customer's drawing, packing, and
quality request;
2. Tolerance: Can be kept in +/-0.01mm;
3. The most advanced CMM inspector to ensure the quality;
4. Experienced technology engineers and well-trained workers;
5. Fast and timely delivery. Speedily&professional service;
6. Give customers professional suggestions while in the process of customer
designing to save costs.Our freight price is often 30-50% lower than customers;
7. Customers can use PAYPAL and another online payment platform
to pay a small amount of sample fee to shorten the sample production time;
8. Quality assurance in accordance with ISO9001:2008.
Advantages :
Materials Available:Custom medical precision parts high demand parts precision
machining hardware.
1.Stainless Steel:SS201, SS303, SS304, SS316 etc.
2.Carbon Steel:AISI 1045, 9SMnPb28 etc
3.Brass:C36000 (C26800), C37700 (HPb59), C38500(HPb58), C27200(CuZn37),
C28000(CuZn40) etc.
4.Bronze:C51000, C52100, C54400, etc.
5.Iron:Grey iron and ductile iron
6.Aluminum:6061, 6063,7075,5052 etc.

How to order:Custom medical precision parts high demand parts precision machining
hardware
* You send us drawing or sample
* We carry through project assessment
* We give you a design
* You think the design is ok
* We make the sample and send it to you
* You think the sample is good then place an order and pay us 30% deposit
* We start to make the product
1. High skilled and well-trained working team under good management environment;
2. Quick response and support for any inquiries;
3. Over 10 years professional manufacture experience to ensure high quality of your
products;
4. Large and strong production capacity to meet your demand;
5. High Quality standard and hygienic environment;
6. We have very strict quality control process:
a. In coming Quality control (IQC) - All incoming raw material are checked before used.
b. In process quality control (IPQC) - Perform inspections during the manufacturing process.
c. Final quality control (FQC) - All finished goods are inspected according to our quality
standard for each products.
d. Outgoing Quality Control (OQC) - Our QC team will 100% full inspection before it goes out
for shipment.
7. Good after sales services.

| Material: |
Aluminum (6061-T6, 6063, 7075-T6,5052) etc... |
| Brass/Copper/Bronze etc... |
| Stainless Steel (201, 302, 303, 304, 316, 420, 430) etc... |
| Steel (mild steel, Q235, 20#, 45#) etc... |
| Plastic (ABS, Delrin, PP, PE, PC, Acrylic) etc... |
| Process: |
CNC Machining, turning,milling, lathe machining, boring, grinding, drilling etc... |
| Surface treatment: |
Clear/color anodized; Hard anodized; Powder-coating;Sand-blasting; Painting; |
| Nickel plating; Chrome plating; Zinc plating; Silver/gold plating; |
| Black oxide coating, Polishing etc... |
| Gerenal Tolerance:(+/-mm) |
CNC Machining: 0.005 |
| Turning: 0.005 |
| Grinding(Flatness/in2): 0.005 |
| ID/OD Grinding: 0.002 |
| Wire-Cutting: 0.003 |
| Certification: |
ISO9001:2008 |
| Experience: |
15 years of CNC machining products |
| Packaging : |
Standard: carton with plastic bag protecting |
| For large quantity: pallet or as required |
| Lead time : |
In general:15-30days |
| Term of Payment: |
T/T, Paypal, Western Union, L/C, etc |
| Minimum Order: |
Comply with customer's demand |
| Delivery way: |
Express(DHL,Fedex, UPS,TNT,EMS), By Sea, By air, or as required |

FAQ
Q1: What processing services do you provide?
A1: We offer comprehensive processing services including CNC machining, CNC milling, CNC turning, 3-axis to 5-axis machining, laser cutting, drilling, bending, stamping, die casting, vacuum casting, injection molding, rapid prototyping, sheet metal fabrication, and multistep machining.
Q2: What materials can you machine?
A2: Our machining capabilities cover metal and plastic.
Aluminum Alloys: 6061, 6063, 6082, 2024, 5052, 5754, 7075, 7050, 7475, 5083, MIC-6, A380
Stainless Steels: 303, 304, 304L, 316, 316L, 321, 410, 416, 420, 430, 440C, 17-4PH (SS630), 15-5PH, Duplex 2205, Duplex 2507
Carbon Steels: 1008, 1010, 1018, 1020, 1040, 1045, 1050, 1080, 1095, Q195, Q235, Q275, S45C
Alloy Steels: 4130, 4140, 4340, 8620, 1215, 5140, 52100
Tool Steels: D2, O1, A2, H11, H13, SKD11, SKD61, S7, M2, M42
Brass: C26000, C26800, C28000, C36000, C46400
Bronze: C51000, C54400, C93200, C95400
Copper: C10100 (OFHC), C10200 (High Conductivity), C11000 (ETP)
Titanium Alloys: Grade 1, Grade 2, Grade 4, Grade 5 (Ti-6Al-4V), Grade 9 (Ti-3Al-2.5V), Grade 23 (Ti-6Al-4V ELI)
Zinc Alloys: Zamak 2, Zamak 3, Zamak 5, Zamak 7
Cast Irons: Grey Iron HT200, HT250, FC200, FC250, Ductile Iron QT400-18, QT500-7, QT600-3
Plastics - General: ABS, PVC, PP, PMMA (Acrylic)
Plastics - POM (Delrin): POM-C, POM-H
Plastics - Nylon (PA): PA6, PA66, Nylon 12, Glass-filled Nylon
Plastics - Polycarbonate (PC): PC-1000, Glass-filled PC
Q3: Can you make the CBAM certificate?
A3: Yes, we can , Normally this certificate is needed by the European customer. Before we make this certificate for our Italy customer.
Q4:How should I proceed without drawing of parts?
A4: If you have samples,please send us samples. If not, please tell us details and request, we can make drawings for your confirmation.
Q5: Can you provide samples before mass production ?
A6: Yes,you have to pay sample fee,which will be returned when you place bulk order.
Q6: What's delivery time ?
A6: Usually around 3-7 days for small order, around 15-20 days for mass order.
Q7:How do you control quality ?
A7:(1) Material Inspection - Check material surfaces and approximate dimensions.
(2) First inspection of production - ensure critical dimensions in mass production.
(3) Sampling inspection - check the quality before delivery to the warehouse.
(4) Preshipment inspection - 100% inspection by QC assistant before shipment.
Q8: How to get a quotation for CNC machining parts?
A8: Please send your drawings (PDF, STEP, DWG), specify material, process, surface finish, tolerance, and quantity. Our engineers will provide a quotation within 24 hours.
Q9: Do you provide one-stop solutions from prototype to mass production?
A9: Yes. We offer one-stop CNC machining solutions covering machining, finishing, assembly, packaging, and global shipping, ensuring fast delivery and cost-effective solutions. Prototypes usually take 5-7 days, and mass production 2-4 weeks.

Quality First, Price Best, Service Foremost!
We assure you of our best services at all times!