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KDB In addition to metric products or non-standard bearings
KDB-103 Self-Lubricating Multilayer Composite Bushing

Structure Characteristics and Applications

KDB10 is backed with copper-plated steel with porous bronze sintered on the steel and polymes (PTFE+Pb) imbedded into the bores of the bronze. By combining the metals and the polymers together, its products are endowed with the lower friction coefficient and good capacity of anti-abrasion and self-lubrication. Moreover, the steel back is plated with a erosion-prevention layer. Products of KDB 100 series are widely applied in printing, weaving and tobacco producing machines, gymnastic equipments, etc.

KDB103 (SF-1T)

Material

Carbon Steel + Copper Powder + (PTFE + Pb + Filler)

Typicai applicaton

Application: medium, high-pressure gear pump, ram pump, vane pumps, etc.

Performance Index Data
Max Load P Static Load 250N/mm²
Max Load P Dynamic Load 140N/mm²
Max Load P Oscoillation Load 40N/mm²
Linear Velocity V Dry Lubrication 2.5m/s
Linear Velocity V Oil Lubrication >5m/s
Max PV value Dry Lubrication 1.0N/mm²· m/s
Max PV value Oil Lubrication 10N/mm²· m/s
Friction Coefficient μ Dry Lubrication 0.08~0.25
Performance Data
Friction Coefficient μ Oil Lubrication 0.02~0.08
Mating Axis Hardness >220 HB
Mating Axis Roughness Ra=0.4~1.25
Working Temperature -200~+280℃
Heat-conducting Coefficient 40W/(m·k)
Heat-expansion Coefficient(Axial) 11×10-6K-1
Outside surface Plating copper/tin
We can also develop according to customers special request while out of this table.

KDB10 Series products

KDB100
(SF-1)

Carbon Steel + Copper Powder + (PTFE + Pb + Filler)

Performance data

Product Size
KDB101
(SF-1B)

Copper plate + copper powder + (PTFE + Pb + filler)

Performance data

Product Size
KDB102
(SF-1S)

Stainless steel + copper powder + (PTFE + Pb + filler)

Performance data

Product Size
KDB103
(SF-1T)

Carbon Steel + Copper Powder + (PTFE + Pb + Filler)

Performance data

Product Size
KDB104
(SF-1P)

Carbon Steel + Copper Powder + (PTFE + Pb + Filler)

Performance data

Product Size
KDB105
(without lead)

Carbon Steel + Copper Powder + (PTFE + Filler)

Performance data

Product Size
KDB106
(without lead)

Copper plate + copper powder + (PTFE + filler)

Performance data

Product Size
KDB107
(without lead)

Stainless steel + copper powder + (PTFE + filler)

Performance data

Product Size
KDB108
(without lead)

Carbon Steel + Copper Powder + (PTFE + Filler)

Performance data

Product Size
KDB109
(without lead)

Carbon Steel + Copper Powder + (PTFE + Filler)

Performance data

Product Size
Product application

Widely used in hydraulic industry, forging machine tool industry, plastics machinery industry port machinery, office, fitness machinery, textile machinery, food package, filling machinery, chemical machinery, automobile, shipbuilding industry, construction machinery and so on.

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E-mail: kd@kd-bearing.com
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Products centerSheet sinteringDesign ResourcesApplication area

Chinese market:NO.108 Zhijiang Road, Jiashan Economic Development Zone, Zhejiang 314100, China
Asia, Africa, Oceania Market:22nd Floor, Building 1, Cannan Square, No.1888 Zuili Road, Nanhu District, Jiaxing, Zhejiang 314050, China
Middle East, European and American markets:Room 902, No.1221 Xietu Road, Shanghai 200032, China

Contact phone:0-18858336880

About us

KDB Bearing Co., Ltd. is a professional manufacturer of KDB series plain bearings and has developed and manufactured six series of products.

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