» DBM Range

DBM Range of sliding bearings is used in existence in the world from last 5 decades and by far the largest used sliding bearings in most of the applications. These bearings are steel shell backed with a lead bronze lining bearing material for oil lubricated applications. This material has high load capacity and good fatigue properties. It is widely used in automotive applications such as compressors, steering gear, power steering, pedal bearings, king-pin bushes, tailgate pivots, mechanical handling and lifting equipment, hydraulic motors, agricultural machinery etc.

The construction of the DBM range in general is Steel backing: provides exceptionally high load carrying capacity, excellent heat dissipation. The mid layer is of Sinter bronze powder which provides good wear resistance and excellent load carrying capacity. As well there is a Copper plating with thickness of 0.002mm provides good corrosion resistance

» Various Lubrication Indentations in the DBM bearing lining :

» DBM Range – Split Gap design:

» DBM Range – Cross section view :

» DBM Range Oil-Hole Design :

Oil Hole is necessary to design if DBM have lubricated sufficiently; the following oil-hole design is recommended, which is also suitable for DBM series without special requirements.

» DEB Material Composition

Bushing O.D. (D)	Φ14＞D ≤ 22	Φ22＞D ≤ 40	Φ40＞D ≤ 50	Φ50＞D ≤ 100	Φ100＞D ≤ 180
Oil Hole Diameter (mm)	3	4	5	6	7

Oil-hole location should keep away from the split gap & loading area, and in favor of oil-taking.

DBM Structure
Backing	Steel	Steel	Steel	Steel
Alloy	CuPb10Sn10	CuPb24Sn4	CuPb30	AlSn20Cu
Corresponding Code	SAE-792(SAE797).	SAE-799.	SAE-48.	SAE-783.
	JIS-LBC3.	JIS-LBC6.	JIS-KJ3	JIS-AJL.
	Clevite F100.	Daido L23. Glyco 68		FM TR-20. Glyco 74.
	GGB-SY.
	FMl HF-2F.
	Glyco 66.
Max Load Capacity P	150N/mm2	130N/mm2	120N/mm2	100N/mm2
Max. Speed
Grease Lubrication	2.5m/s	2.5m/s
Oil Lubrication
Max Speed	10m/s	10m/s	15m/s	25m/s
Maximum PV Value
Grease Lubrication	2.8N/mm2 · m/s	2.8N/mm2 · m/s	2.5N/mm2 · m/s
Oil Lubrication	10N/mm2 · m/s	10N/mm2 · m/s	8N/mm2 · m/s	6N/mm2 · m/s
Coefficient of friction
Grease Lubrication	0.05~0.15	0.06~0.16
Oil Lubrication	0.05~0.12	0.05~0.15	0.06~0.17	0.06~0.17
Max Working Temperature
Grease Lubrication	150℃	150℃	170℃	150℃
Lubrication	250℃	250℃	250℃	250℃
Alloy Hardness	60~100HB	45~70HB	30~45HB	30~40HB