Customized Tungsten Carbide Shaft Sleeve/Oil Nozzle
This is a tungsten carbide shaft sleeve and oil nozzle for use in pumps, valves and bearings. It is pressed on an imported press and sintered in an over-pressure furnace to achieve stable quality, good density and high comprehensive…
Product Overview
This is a tungsten carbide shaft sleeve and oil nozzle for use in pumps, valves and bearings. It is pressed on an imported press and sintered in an over-pressure furnace to achieve stable quality, good density and high comprehensive performance. The product is made to the buyer's drawing, not from a standard catalogue. It is used to reduce wear, maintain sealing and extend service life in abrasive or corrosive environments.
Key Benefits
- Long service life due to exclusive raw material formula with wear-resistant elements
- Lower processing cost because of small tolerance margin on boundary dimensions after sintering
- Good density and stable quality from over-pressure sintering and imported pressing
- Chemically stable against acid, alkali, alcohol, ether, hydrocarbons, oil, detergent and sea water
- Fast delivery even without stock, thanks 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 fluid and load |
Problems It Solves
- Steel sleeves wear quickly in abrasive or corrosive fluids, leading to increased clearance and leakage
- Large tolerance margins after sintering require more grinding, increasing processing cost per part
- Inconsistent green density from low-quality pressing leads to dimensional variation and scrap
- Chemical attack from acid, alkali or sea water reduces the life of non-carbide parts
- Long lead times for custom parts when moulds are not available or production is slow
Who It Is For
- Pump manufacturers specifying wear-resistant components for submersible, slurry and centrifugal pumps
- Valve makers needing durable shaft sleeves to reduce leakage and extend seal life
- Bearings and mechanical assembly suppliers requiring low-wear bushings for shaft protection
- Maintenance teams replacing worn sleeves in pumps and valves with a known drawing
- OEMs sourcing custom carbide parts with consistent performance and fast turnaround
Application Scenarios
- Shaft sleeve in submersible oil pumps handling sand-laden crude
- Oil nozzle in high-pressure valve systems exposed to abrasive slurry
- Wear protection in bearings where shaft and housing clearance must be maintained
- Sealing sleeve in centrifugal pumps operating with sea water or corrosive fluids
- Valve bonnet sleeve in petrochemical systems 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 elements for extended service life
- Regular geometry with small tolerance margin on boundary dimensions
- Complete inventory of standard moulds enables fast production even for non-stock items
Materials and Grades
- WC-Co cemented carbide with cobalt content selected for the balance of hardness and toughness required by the duty
- Lower cobalt grades such as YG6 for maximum wear resistance in clean abrasive service
- Higher cobalt grades such as YG15 for better impact resistance in high-pressure or shock-prone applications
Customisation Options
- Manufactured to customer drawings including non-standard and specially shaped sleeves and nozzles
- Grade changed to suit the fluid, abrasive load and pressure cycle
- Matched sleeve and shaft pairs supplied together for consistent fit
- Samples produced for pre-testing before bulk release
How This Part Is Made
Drawing review and grade selection
Mould selection or new mould creation
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 fluid, solids content, temperature and pressure cycle so the grade can be matched properly
- Order the sleeve and mating shaft together to ensure proper fit and avoid clearance issues
- Support the sleeve on a full bearing face; avoid point loading on unsupported edges to prevent chipping
- Do not shock a cold carbide sleeve into hot service; allow the assembly to equalise temperature
- 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 and easier to machine, but wears quickly in abrasive or corrosive service, leading to higher downtime and replacement cost |
| Ceramic sleeve | Ceramic has similar wear resistance but is more brittle under impact; carbide handles pressure shock better in cycling systems |
| Coated or hardfaced sleeve | A coating wears through and then the base metal fails rapidly; solid carbide wears uniformly through the full section |
Customized Tungsten Carbide Shaft Sleeve/Oil Nozzle 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 and nozzles.
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 Customized Tungsten Carbide Shaft Sleeve/Oil Nozzle
Send the drawing or the dimensions plus what the part runs against. Samples are available for pre-testing before a bulk order.