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Hongda's main products JDB inlay series bearings, copper sleeves, skateboards, rough series

HDB-JDB Series

Hongda's main products are JDB inlay series bearings, copper sleeves, skateboards, rough series, FB090 series bearings, JF800 bimetal series bearings, SF series self-lubricating bearings and other ten series products

Solid lubricated bearings
JDB uses high-strength copper alloy as the basic material, and according to the working conditions, a certain proportion of holes are processed on the working surface and filled with solid lubricant. The high-strength copper alloy provides a high load-bearing capacity and the solid lubricant can form a lower friction pair. Under dry friction conditions, we design a layer of pre-lubricating film on the bearing surface to ensure that the solid lubricant is transferred to the coupler in the shortest time and an effective solid lubricating film is formed.

Product features and cardinality index

Application characteristics

HDB-JDB-10 is a new product inlaid with solid lubricant on the base of high-strength brass, which breaks the limit of ordinary bearings relying on oil film lubrication. It is suitable for use under high temperature, high load, corrosion resistance or failure to lubricate. Its hardness is twice as high as the general copper sleeve, and its wear resistance is also twice as high. Currently widely used in metallurgical continuous casting machines, steel rolling equipment, mining machinery, ships, steam turbines, injection molding machines and equipment production lines.
HDB-JDB-20 is mainly suitable for low load, high temperature and medium speed applications, such as fireplace door hinges. Oven raceway, light industry machinery, machine tool industry, etc.
The interior material of HDB-JDB-30 is the same as HLDB-JDB-20, in addition to the function of HLDB-JDB-20, it also reflects the cost savings, improves the compressive strength and can be welded and installed on the end face and the substrate, suitable for construction Non-lubricated parts in machinery, metallurgical machinery and transportation machinery.
HDB-JDB-40 is a reinforced product, which has extremely high compression resistance, and is particularly suitable for the supporting parts of lifting machinery, such as: excavator support, winch support, crane support, etc. However, because the substrate is made of steel, it is not suitable for use in water, acid or alkali.
HDB-JDB-50 is a typical material-saving product. In places where the mechanical performance requirements are not very high, it can be used as an alternative material for HLDB-JDB-10, which can greatly reduce the cost and meet the requirements of use, such as: mold guide post, injection molding machine mold frame, etc.


1、It can be used without oil supply.
2、 In the case of high load and low speed, it can still play its superior performance.
3、In places where it is difficult to form an oil film such as reciprocating motion, rocking motion, frequent start and stop, it can still exert excellent wear resistance.
5、Flexible design, simple, convenient, rich standard products, can be used with standard axis.
4、 Excellent chemical resistance and corrosion resistance

Solid lubricant
Solid lubricant High purity graphite + additives SL4+MoS2
characteristic Very good abrasion resistance and chemical stability, use temperature <400℃ Very low coefficient of friction and good water lubricity, use temperature <300℃
Typical uses Used in general machinery, used in the atmosphere Used in water, sea water lubrication, such as ships
Alloy materials
Project Model HDB-JDB-50 HDB-JDB-52 HDB-JDB-53 HDB-JDB-54 HDB-JDB-56
Comparison table of alloy materials Chinese grade
CuZn25Al5Fe3Mn3 CuAl9Fe4Ni4Mn2 CuSn5Pb5Zn5 GCr15 GB5675-85HT250
GCuZn25Al5Fe3Mn3 CuAl10Fe5Ni5 QSn5-5-5 B1 185Gr250
DIN1709G-CuZn25A15/2.0598 DIN17656
100Cr16 DIN17007
H5102 CAC304 H5114 CAC703 H5111 CAC406 SUJ2 FC250
B30-92 C86300 B30-92 C95800 B30-92 C83600 E52100 ASTM
Chemical composition of alloy materials Cu(%) Rest Rest Rest * *
Sn(%) * * 4.0~6.0 * *
Zn(%) 22.0~28.0 * 4.0~6.0 * *
Ni(%) * 4.0-5.0 * * *
Al(%) 5.0~7.0 8.5-9.5 * * *
Fe(%) 2.5~4.0 3.0-4.5 * Rest Rest
Mn(%) 2.5~5.0 0.8-1.5 * 0.20-0.40 0.905-1.3
Cr(%) * * * 1.30-1.65 *
C(%) * * * 0.95-1.05 2.5-4.0
Si(%) * * * 0.15-0.35 1.0-1.3
Pb(%) * * 4.0~6.0 * *

Advantages of self-lubricating bearings

Modern design is generating huge demand for today's self-lubricating bearing materials. Even under severe extreme operating environments and maximum load conditions, maintenance-free is required. As cost requirements continue to increase, the reliability requirements of equipment and plant operations are also increasing. Metal self-lubricating bearings can meet maintenance-free and self-lubricating under long-term use conditions, thereby making it possible to design reliable long-term self-lubricating systems. Metal self-lubricating bearing materials can be widely used in rotation, swing and linear reciprocating motion under high load and low speed conditions, and are also suitable for occasions where traditional lubrication cannot be achieved or are prohibited, or in special working conditions such as dust and impact Long-term and stable use under load or irradiation.

Specific product model of solid lubricating bearing