Tungsten Carbide Bush/Carbide Sleeve
This is a tungsten carbide bush or carbide sleeve made from cemented carbide (WC-Co). It is designed to protect components in high-wear environments by reducing friction and wear between moving parts. The bush is pressed on an imported…
Product Overview
This is a tungsten carbide bush or carbide sleeve made from cemented carbide (WC-Co). It is designed to protect components in high-wear environments by reducing friction and wear between moving parts. The bush is pressed on an imported press and sintered in an over-pressure sintering furnace, which ensures consistent density and shape. It is available in standard sizes or customised to drawing. The product is used in valves, bearings, pumps and other mechanical systems where wear resistance and chemical stability are critical.
Key Benefits
- Long service life due to exclusive raw material formula with wear-resistant elements
- Good density and stable quality from over-pressure sintering and imported pressing
- Lower processing cost because of small tolerance margin on boundary dimensions
- Chemically stable against acid, alkali, alcohol, ether, hydrocarbons, oil, detergent, water, and sea water
- Fast delivery due to complete mould inventory and short production cycle
Technical Data
Values below come from the product data we publish. Anything not listed is confirmed against your drawing at quotation.
| Material | Cemented tungsten carbide (WC-Co) |
|---|---|
| Shaping | Pressed and sintered from existing or new moulds |
| Finish | Ground to drawing |
| Dimensions | To customer drawing |
| Lead Time | Stock items 3-5 days after payment; customised items quoted per order |
| Grades Available | YG6 YG8 YG10 YG15 YL10.2 and equivalents, selected against the duty |
Problems It Solves
- Steel bushings wear out quickly in abrasive or corrosive environments, leading to frequent replacements
- Clearance increases between shaft and sleeve due to wear, causing leakage or misalignment
- Large dimensional margins after sintering require more grinding, increasing processing cost
- Chemical attack from acids, alkalis or sea water reduces the life of non-carbide materials
- Long lead times for custom parts delay production when no stock is available
Who It Is For
- Pump manufacturers needing wear-resistant bushings for submersible, slurry and centrifugal pumps
- Machinery makers integrating carbide sleeves into bearings and shaft assemblies
- Oilfield and petrochemical plant maintenance teams replacing worn steel sleeves
- Tool and die shops requiring durable bushings for high-load forming equipment
- 3D printing hardware developers using carbide sleeves in moving parts
Application Scenarios
- Valve rod bushing in submersible oil pumps handling sand-laden crude
- Bushing in slurry pumps where abrasive solids cause rapid wear on steel parts
- Shaft sleeve in centrifugal pumps exposed to sea water and corrosive fluids
- Wear protection in ball mill and bead mill components under high-speed rotation
- Sealing sleeve in high-pressure valves where leakage must be minimised
Technical Features
- Pressed on an imported press for consistent green density
- Sintered in an over-pressure sintering furnace to close porosity and stabilise density
- Exclusive raw material formula with wear-resistant additives for extended life
- Regular geometry with small tolerance margin on boundary dimensions
- Complete range of standard moulds enables fast production even for non-stock items
Materials and Grades
- WC-Co cemented carbide with cobalt content selected for hardness and toughness balance
- Lower cobalt grades such as YG6 for maximum wear resistance in clean abrasive service
- Higher cobalt grades such as YG15 for better impact resistance under pressure shock
- Wear-resistant additives in the raw material formula to extend service life
Customisation Options
- Manufactured to customer drawings including non-standard and specially shaped sleeves
- Grade changed to suit the fluid, abrasive load and pressure cycle
- Custom bushings made with matched shaft or seat for proper fit
- Samples produced for pre-testing before bulk release
How This Part Is Made
Drawing review and grade selection
Mould selection or new mould development
Powder blending
Pressing on imported press
Over-pressure sintering
Grinding to drawing
Dimensional and physical property inspection
Packing and shipping
Quality Control
- Physical properties, shape and tolerance are checked before shipping
- Every order is tested before bulk production is released
- Inspection photographs of the finished order are sent for confirmation before delivery
Use Guide
- Send the drawing with the operating conditions including fluid, solids content, temperature and pressure cycle for grade selection
- Order the bush and mating shaft or seat together to ensure proper fit and wear performance
- Support the bush on a full bearing face; avoid point loading on unsupported edges to prevent chipping
- Do not expose a cold carbide bush to hot fluid; allow the assembly to equalise temperature gradually
- Keep one sample from the first batch for comparison when measuring future orders
How It Compares With The Alternatives
| Alternative | Trade-off |
|---|---|
| Hardened steel bush | Steel is cheaper per piece but wears out faster in abrasive or corrosive service, leading to higher downtime and replacement frequency |
| Ceramic bush | Ceramic offers similar chemical resistance but is more brittle under impact; carbide better withstands shock and pressure cycling |
| Coated or hardfaced bush | A coating wears through and exposes the base metal, which then fails quickly; solid carbide wears uniformly across the entire section |
Tungsten Carbide Bush/Carbide Sleeve FAQ
Are you a trade company or a manufacturer?
A manufacturer. The company has produced tungsten carbide parts for over 15 years and takes on design and processing of carbide products with technical support.
Where is your factory located?
Zhuzhou City, Hunan Province, China, which is the country's tungsten carbide production base.
Can I get a sample before placing a bulk order?
Yes. Samples are available for pre-testing. Send the drawing and service conditions and a sample can be quoted.
Can you produce the products according to my own drawing?
Yes. OEM and ODM to customer drawings is standard, including non-standard and specially shaped sleeves.
How long does an order take?
Stock items are shipped 3-5 days after payment is received. Customised items are given a delivery time in the quotation.
How do I know the parts were checked before they shipped?
Physical properties, shape and tolerance are inspected before shipping, and detailed inspection photographs of the order are sent for confirmation before delivery.
Which grade should I choose?
It depends on the fluid and the load. Lower cobalt grades such as YG6 give the best wear resistance in clean abrasive service; higher cobalt grades such as YG15 tolerate impact and pressure shock better. Send the operating conditions and a grade will be recommended.
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Send the drawing or the dimensions plus what the part runs against. Samples are available for pre-testing before a bulk order.