JDB Solid-lubricant Inlaid Bearing

JDB Solid-lubricant Inlaid Bearing The so-called non-oil means less fuel without refueling, the goal of our research is to ensure that bearing this condition also showed a good performance and extend its life as much as possible. Self-lubricating bearings basic principle is that the solid lubricant in the initial operational phase of the bearing surface due to mutual friction asked to form a transfer film and covered with a wear member to the final formation.

Metallographic Picture

JDB high-strength copper alloy as base material, according to the use conditions by a certain percentage of its working surface machined hole and fill one solid lubricant. High-strength copper alloy provides a high load carrying capacity and the solid lubricant can be formed of a low friction. Under dry conditions we have designed a layer of film on pre-lubricated bearing surface ensures the shortest possible time will be transferred to the solid lubricant on the coupling member and form a valid solid lubricant film.

①Solid lubricating film
②Solid lubricants
③Copper alloy matrix

Metal Material

Data	JDB-1	JDB-2	JDB-3	JDB-4	JDB-5	JDB-6
China Brands GB1776-87	ZCuZn25 Al6Fe3Mn3	ZCuZn25 Al6Fe3Mn3	ZCuAl9Fe4 Ni4Mn2	GCr15	HT250	ZCuSn10 Zn2
International ISO1338	GCuZn25 Al6Fe3Mn3	GCuZn25 Al6Fe3Mn3	GCuAl10 Fe3Ni5	B1	-	GCuSn10 Zn2
Germany DIN	G-CuZn25 Al5	G-CuZn25 Al5	G-CuAl10 Ni	100Cr6	-	G-CuSn10 Zn
Japan JIS	HBsC4	HBsC4	AlBC3	SUJ2	FC250	BC3
America ASTM/UNS	C86300	C86300	C95500	52100	Class40	C90500
British Standard（BS）	HTB2	HTB2	AB2	-	-	G1

Technical Data

Data	JDB-1	JDB-2	JDB-3	JDB-4	JDB-5	JDB-6
Max Move Load Capacity P N/mm²	100	150	50	200	15	70
Max Sliding Speed V m/min	15	10	20	5	15	10
Max PV Value Limit N/mm²·m/min	200	200	200	150	40	200
Density ρ g/cm³	8.0	8.0	7.6	7.8	7.3	8.8
Tensile Strength N/mm²	＞750	＞780	＞500	＞1500	＞250	＞350
Elongation %	＞12	＞4	＞10	-	-	＞8
Hardness HB	＞210	＞250	＞150	HRC＞55	＞160	＞80
Max Working Temperature ℃	300	300	400	300	400	400
Friction Coefficient μ	Oil Lubrication: 0.03			Dry Friction: 0.16

Chemical Elements

Data	JDB-1	JDB-2	JDB-3	JDB-4	JDB-5	JDB-6
Cu %	Rest	Rest	Rest	-	-	Rest
Sn %	-	-	-	-	-	10
Zn %	25	25	-	-	-	2
Ni %	-	-	4	-	-	-
Ai %	6	6	9	-	-	-
Fe %	3	3	4	Rest	-	-
Mn %	3	3	2	0.20~0.40	-	-
Cr %	-	-	-	1.30~1.65	-	-
C %	-	-	-	0.95~1.05	-	-
Si %	-	-	-	0.15~0.35	-	-

Solid Lubricants

Codes	SM01	SM02	SM03
Main Compositions	Graphite	Graphite+MoS2	PTFE+Graphite+Olefin
Features	Good chemical stability, temperature＜250℃	Good wear performance and chemical stability, temperature＜400℃	Lowest friction coefficient and good water lubrication,temperature Rang -40～80℃
Application Place	General(atmosphere)	High temperature high load capacity	Seawater use, high pressure use

Characteristic

Modern design for today's self-lubricating bearing material is undergoing tremendous demand. Even in the severe operating environment and maximum extreme load conditions also require maintenance. As the cost of the increasing demand, business equipment and plant operation reliability requirements are also increasing. Metal self-lubricating bearings to meet the long-term maintenance-free and under the conditions of use of self-lubricating, thus making the design of reliable long-term self-lubricating system possible. Metal type self-lubricating bearing material can be widely used in high-load low speed rotation conditions, swivel and linear reciprocating motion, but also for conventional lubrication can not be achieved or prohibit the use of the occasion, or in special conditions such as dust, shock load or irradiation conditions require long-term and stable use.

Product Features

1．No oil supply device, oil hole, oil tank processing
The cost of oil supply, processing costs, assembly costs and other unnecessary cost and time savings, can significantly reduce manufacturing costs.
2．Lower operating costs
Greatly reducing the use of lubricants and equipment maintenance costs, but also eliminates the risk due to lack of oil.
3．Design time is shortened
Oil-free design, structure, etc. can greatly simplify, reduce costs, save design time, in addition, the use of self-lubricating bearings can also improve the mechanical properties, extend service life and improve reliability and achieved significant results.
4．Lubricant recovery and environmental protection
No waste oil recycling, is conducive to environmental protection.
Self-lubricating bearings as a mechanical industry components, there is a certain broad sense to use. In order to make the machine run properly, under a lot of effort. The bearing is divided into rolling bearings and sliding bearings. General sliding bearing in high-load movement, foreign body mixed with, temperature conditions, oil supply, maintenance and other imperfections, will cause nap. In the harsh conditions, such as the plain bearing can not be used, the wear resistance of the solid-inlaid metal self-lubricating bearing, the resistance to lint, play the proper performance of the bearing to achieve high-performance mechanical and maintenance-free role.

Precautions for Use

1．Whenever possible, use standard specifications whenever possible;
2 . Please pay attention to the surface of the assembly without foreign body;
3．After the use of the sliding surface, due to the formation of solid lubricant oil film surface has a black or gray-black phenomenon, please do not scrub, as usual;
4．Before assembly, if the lubricant applied to the grinding parts, can shorten the walking period, conducive to mechanical operation, operation;

5．Assembly should be slowly pressed into, is strictly prohibited to beat, so as not to damage the bearing and cause deformation;
6．Design, the different parts should use the appropriate material, in order to improve mechanical properties, extend bearing life;
7．In the high load, reciprocating motion, the proposed use of screws;
8．In freshwater, seawater and offshore operations, the grinding shaft is recommended to use stainless steel or chrome-plated surface.

Product Advantages

1. Flexible design, simple and convenient, using a wide range;
Oil supply system in the mechanical design is a lot of work, time-consuming device, the use of solid self-lubricating bearings need not be considered in the design of fuel means saving fuel plant equipment, and can for a variety of special occasions, the solid self-lubricating bearings designed into a variety of shapes to meet the needs of a variety of special occasions, the use of solid self-lubricating bearings, can significantly reduce the mechanical maintenance, fuel and other expenses.
2. No oil can be used;
Since the coefficient of linear expansion of solid self lubricant is greater than the metal substrate, so when solid self-lubricating bearings start running, the film will be transferred to the upper grinding member achieved self-lubricating, so solid self-lubricating bearings can be used in difficult to refuel and can not refuel or fat place, even in the case of low speed, high load, but also can play a good lubrication.
3. Low cost;
Traditional mechanical design, operating within a certain time, to regular refueling and maintenance, check the fuel gauge, oil installations is smooth, due to regularly refuel the body itself and cause pollution of the surrounding environment, resulting in increase of the maintenance costs and achieve after self-lubricating, not only can make the environment clean, but also greatly reduces the cost of the use of lubricants.

4. The high-load, low-speed conditions, can play a superior performance;
Solid self-lubricating bearings are used centrifugal casting high-strength brass alloy as a matrix, play a role in carrying the load, graphite has good self-lubricating properties of specially formulated as a lubricant, play a role in self-lubricating, it combines them the respective merits, even under high load, low speed conditions, can play a superior performance.
5. The reciprocating motion, rocking motion, start-stop and frequent film formation difficult place to play excellent wear resistance;
Solid lubricants self-lubricating bearing arrangement principle is to ensure that all parts of the grinding member has a lubricant effect during operation of the thus arranged with the lubricant must be based on the direction of movement of the grinding member arranged to determine the position of the lubricant.
6. superior chemical resistance and corrosion resistance;
Solid self-lubricating bearing lubricant is specially formulated with graphite, PTFE, molybdenum disulfide and other wear-resistant material, which has a stable molecular structure, metal matrix can have different chemical resistance and corrosion resistance depending on the metal of selected, solid self-lubricating bearings and therefore has excellent chemical resistance and corrosion resistance.