RFQ Checklist
- Drawing or sample dimensions
- Shaft material, media, speed, load, and temperature
- Current failure mode or target service life
- Quantity, packaging, and delivery location
Carbon graphite bushings, bearings, seals, vanes, washers, and sliding components for dry-running, high-temperature, and chemically exposed equipment.
Complete RFQs are easier to review within 1-2 business days when drawings, graphite grade, quantity, and destination are included.
| Option | Best Fit | Watchouts |
|---|---|---|
| Carbon graphite bearing or bushing | Dry-running, vacuum, pump, compressor, and machinery applications where self-lubricating behavior is needed. | Confirm shaft material, surface condition, speed, pressure, temperature, and media before copying the old part. |
| Resin or metal impregnated graphite | Sealing, liquid service, chemical exposure, or wear parts that need controlled porosity or improved strength. | Match impregnation to media compatibility and operating temperature instead of selecting by catalog name only. |
| High-temperature graphite wear component | Furnace, thermal equipment, and dry sliding components exposed to heat beyond common polymer or bronze limits. | Review oxidation exposure, mating surface, thermal cycling, and clearance growth before production. |
Use drawings, measured samples, photos, and prior failure notes to define critical diameters, faces, and clearances.
Review media, speed, pressure, temperature, shaft material, lubrication, and target service life before selecting grade or impregnation.
Machine bores, faces, grooves, slots, and seal surfaces with attention to brittle edges and replacement-part interchangeability.
Check fit-critical dimensions, record buyer part IDs, separate mixed sizes, and protect seal faces or thin rings during shipment.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Operating media | Dry gas, vacuum, chemicals, or high-temperature zones | Media compatibility drives carbon graphite grade and impregnation choice. |
| Wear interface | Buyer-specific shaft and mating material | The mating surface strongly affects service life and noise. |
| Duty inputs | Speed, pressure, load, temperature, clearance, and lubrication state | Wear-part material selection is unreliable without the operating condition behind the dimensions. |
A drawing is preferred, but photos and a sample can start the review. Critical dimensions and material assumptions must be confirmed before production.
No. Carbon graphite also works in dry-running, vacuum, pump, compressor, and chemically exposed applications depending on grade.
Discuss impregnation when the part sees sealing duty, liquid media, chemical exposure, strength concerns, or porosity-sensitive service. The correct choice depends on media and temperature.
Inquiry Email
Complete RFQs are easier to review within 1-2 business days when drawings, grade, quantity, and destination are included.
WhatsApp Alignment
+8618857971991
Use WhatsApp for quick alignment; send drawings by email for traceable review.