Tungsten Carbide Bush/Tungsten Carbide Shaft Sleeve
This is a tungsten carbide bush or shaft sleeve made from cemented carbide (WC-Co). It is pressed on an imported press and sintered in an over-pressure sintering furnace to achieve stable quality, good density, and high comprehensive…
Product Overview
This is a tungsten carbide bush or shaft sleeve made from cemented carbide (WC-Co). It is pressed on an imported press and sintered in an over-pressure sintering furnace to achieve stable quality, good density, and high comprehensive performance. It is used to protect components in pumps, valves, and bearings by reducing wear and maintaining sealing integrity under abrasive or corrosive conditions.
Key Benefits
- Long service life due to exclusive raw material formula and wear-resistant additives
- Lower processing cost because of small tolerance margin on boundary dimensions after sintering
- High chemical stability against acid, alkali, alcohol, ether, hydrocarbons, oil, detergent, and sea water
- Stable quality with consistent density and shape after over-pressure sintering
- Fast delivery due to complete mold 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 shaft sleeves wear quickly in abrasive or corrosive environments, leading to frequent replacements
- Clearance increases between shaft and sleeve as wear progresses, causing leakage or vibration
- Large grinding allowances on pressed blanks increase finishing cost and processing time
- Chemical attack from acids, alkalis, or sea water reduces the life of non-carbide materials
- Long lead times for custom parts delay maintenance and production schedules
Who It Is For
- Pump manufacturers producing submersible, slurry, centrifugal, and water pumps
- Valve makers requiring wear-resistant sleeves for rod bonnets and sealing surfaces
- Machinery OEMs using carbide bushings in high-wear rotating or sliding joints
- Maintenance teams replacing worn shaft sleeves in industrial pumps and valves
- Engineering firms sourcing wear-resistant parts for petrochemical and mining equipment
Application Scenarios
- Shaft sleeve in submersible oil pumps handling sand-laden crude
- Wear protection in slurry pump shafts exposed to abrasive particles
- Valve rod bonnet sleeve in high-pressure valves where leakage must be minimised
- Bearing bush in centrifugal pumps where shaft-to-bore clearance must be maintained
- Shaft sleeve in water pumps exposed to sea water or chemical solutions
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 service life
- Regular shape and small tolerance margin on boundary dimensions after sintering
- Complete inventory of standard molds enables fast production even without stock
Materials and Grades
- WC-Co cemented carbide with cobalt content selected for the balance of hardness and toughness
- Lower cobalt grades such as YG6 for maximum wear resistance in clean abrasive service
- Higher cobalt grades such as YG15 where the sleeve sees impact or 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, pressure cycle, and temperature
- Samples produced for pre-testing before bulk release
- Matched sleeve and shaft pairs supplied together if required
How This Part Is Made
Drawing review and grade selection
Mould selection or new mould design
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 so the grade can be matched
- Order the sleeve and mating shaft together to ensure proper fit and reduce clearance wear
- Support the full face of the sleeve; avoid point loading on unsupported edges to prevent chipping
- Do not shock a cold carbide sleeve into hot service; allow thermal equalisation to avoid cracking
- Keep one sample from the first batch for comparison when measuring future orders
How It Compares With The Alternatives
| Alternative | Trade-off |
|---|---|
| Hardened steel sleeve | Steel is cheaper per piece and easier to machine, but wears quickly in abrasive or corrosive environments, leading to higher long-term cost and downtime |
| Ceramic sleeve | Ceramic offers similar wear resistance but is more brittle under impact; carbide tolerates pressure shock better in cycling applications |
| Coated or hardfaced sleeve | A coating wears through and then the base metal fails rapidly; solid carbide wears uniformly and maintains integrity |
Tungsten Carbide Bush/Tungsten Carbide Shaft 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 for this part, including specially shaped sleeves and matched pairs.
How long will it take to execute my order?
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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View Details →Get A Price For Tungsten Carbide Bush/Tungsten Carbide Shaft Sleeve
Send the drawing or the dimensions plus what the part runs against. Samples are available for pre-testing before a bulk order.