factory DU hot sales Bimetal Bearing bushing

DALON BUSHING MATERIAL STRUCTURE

DALON BUSHING FAQ:

Q: Bushing type selection?

A: The metallic structure of the self-lubricating bushing can be made from a wide range of bronze or iron based alloys. To select the proper material for a given application, it is necessary to check the maximum values of the material characteristics in comparison with:

u Shaft linear speed - v

u Applied load - p

u pv (load x speed) factor

Shaft hardness and surface roughness and other parameters such as working

temperature and type of lubrication, etc.

Q: Lubricant Oil Selection?

A: Standard impregnating oil conforms to SAE 30 specifications

Lubricants are suitable for the temperature range from -40°C to 150°C

Also have option for customer to made special oil impregnation by self

Q: De-impregnation & Re-Impregnation?

A: De-impregnation required Degrease and wash in appropriate solvent

Eliminate the lubricant in a furnace heated around 400°C for 40 minutes under a neutral atmosphere such as N2, or with reducing agent such as N2 + H2

Re-Impregnation need Immerge during one hour the parts in an oil bath heated at a temperature between 60°C and 120°C, depending on oil viscosity .Then cool down in an oil bath back to room temperature. Finally drain and dry the self-lubricating bearings.

Q: Factory or Trading Company?

A: DALON established in 2002 and have two factories under DALON group with shareholders, one workshop specialized in sintered bronze bushing and another handles all sintered filter and silencers.

Q: What is MOQ?

A: We are enjoying to grow up together with all of our clients whatever big or small orders. You will become bigger and bigger to be with DALON.

Q: Can DALON make customized products?

A: Yes, DALON can offer OEM / ODM manufacturing

Q: Will drawing or sample design safe after DALON get it?

A: DALON will NOT release your design to any third parties without your permission. Usually we will sign NDA before all drawing and samples.

Q: Can DALON offer design services?

A: DALON have R&D and can offer special design about your requirements with drawing 3D in format IGES/STEP,PDF/ CAD in DGW/DXF & photos.

Q: How about Quality System?

A: DALON have ISO9002 quality system and in-house inspection by Projector, CMM, Hardness Tester, Roughness Tester, Salt Spray Tester, Tensile Strength Test, Caliper, Micrometer, Height Gauge, Ring and Plug Gauge, Pin Gauge ,etc.

Q: About Sample?

A: DALON can supply the samples for FREE, but the customers have to support the tooling cost if have and the courier cost

Q: Tooling Charge?

A: Tooling charge is one off when first order, all future orders would not charge again even tooling repair or under maintaince.

Q: Lead Time?

A: DALON usually effect delivery within 21days after advance payment. Stock items could be delivered within 3days. If item need open tooling, consider extra 7days.

Q: Payment Terms?

A: Advance 50% and balance against copy of shipping B/L. For long term business DALON have more advantage terms for payment.

Q: How to deal with the complains if happens?

A: In any case of complains, please contact DALON within 30days after receive the goods, DALON will find the root causes and corrective & preventive actions. DALON will take full responsibility for the claims.