Wrapped bronze bearing is a kind of bushing wrapped by a bronze strip. This type of bronze bearing is made of a particular formulation with high specific gravity and its surface can be incorporated with spherical or diamond-shaped indentations or oil grooves based on customers’ requirements. It is a high load capacity and long life. Compared with traditional cast bronze bushing, it is cheaper and more compact. a wrapped bronze bushing is widely used in hoisting machines, construction machines, automobiles, trucks, machine tools, mineral equipment and etc.

Bronze Wrapped Bearings

Features
Bronze With Through Hole Self-Lubricating Bearing

FB-090 is a type of bush wrapped in a bronze strip. Bronze has a particular formulation with a high specific weight and on its surface, it can be incorporated with diamond-shaped spherical recesses or oil grooves, if necessary. It has a high density, good load-bearing capacity, and wear-resistant. The product is applied to lifting machines, construction machines, and mining machines, etc.

1. Easy of fitting and lubrication
2. High load capacity
3. Possibility of producing items, the inner side can be machined
4. High-level thermal conductivity
5. Minimum overall dimensions
6. Chemical resistance
7. Initial pre-lubrication at assembly required

Bronze Bushing cusn8p material

090 092 bushing	Cu%	Sn%	P%	Pb%	Zn%
	rest	7~9	0.2~0.4	/	/

Technical Data

Max Load	Static load	120N/mm2		Hardness	HB110-150
	Dynamic	40N/mm2		Elongation	40%
Max. Speed	2m/s			Temp.	-100℃~＋200℃
Max PV	2.8N/mm2．m/s			Friction coefficient	0.08~0.25
Tensile strength	450N/mm2			Thermal conductivity	60W(m．K)-1
Yield point	250N/mm2			Coefficient of thermal expansion	15×10-6/K-1

Chemical Composition

Part No	Material	Cu	Sn	P	Pb	Zn
HSB-090	CuSn8	91.3%	8.5%	0.2%	/	/
HSB-092	CuSn8	91.3%	8.5%	0.2%	/	/

Material Characteristics

Max. Load Capacity P
Static Load	N/mm2	120
Dynamic Load	N/mm2	40
Max. Speed V
HSB-090	m/s	2.0
E92	m/s	>2.5
Max. PV Value	N/mm2·m/s	2.8
Tensile Strength	N/mm2·m/s	450
Yiled Point	N/mm2·m/s	250
Hardness	HB	90-120
Elongation		40%
Coefficient of Friction	μ	0.08~0.25
Operation Temperature Range	℃	-100~200
Thermal Conductivity	W/(m · k)	60
Coefficient of Thermal HSB-2pansion	k-1	15×10-6

Technical Details

• Specific load capacity static≤ 120 [N/mm2]
• Specific load capacity dynamic≤ 40 [N/mm2]
• Sliding speed≤ 2.5 [m/s] depending on lubrication
• Friction value0.05 [µ] to 0.12 [µ]
• Temperature strain– 40 [°C] to + 250 [°C]
• Max. PV-value2.8 [N/mm² x m/s]

Tolerance Details

• Housing ØH7
• Bushing inner-Ø after mountingH9
• Shaft tolerancef7 to h8

Sliding Bronze Bearing Advanger

1.Save a lot of copper materials and save the man-hours of car manufacturing copper sleeves;
2.Compared with vehicle-made shaft sleeves and rolling bearings, it is lighter in weight and lower in cost;；
3.Various holes, pits, and certain grease can be processed on the friction surface, and the time for refueling is 5 times longer than that of the copper sleeve;
4.Very high load-bearing capacity, especially suitable for rough friction surfaces; Products available: straight sleeves, thrust washers, flanged bushes, bearing bushes, sliding plates, steel sleeve assemblies.

Structure

The bearings are wrapped from a cold-formed homogenous bronze (CuSn8) with exceptional material properties. The standard sizes are fitted with diamond-shaped lubrication indents in the bearing surface. These indents serve as lubricant reservoirs to rapidly build up a lubrication film at the start of the movement and thereafter reduce the running friction. The material is suitable for construction and agricultural machinery applications.

Technical

• Base material: CuSn8P0.3
• Hardness: HB90-120
• Load capacity: 750N/mm2
• Temperature: -80 – +200℃
• Speed limit: 2.5m/s
• PV limit(oil): 16N/mm2.m/s

Available Sliding Bronze Bearings Type

• Bushes
• Flanged bushes
• Washer
• Thrust washers
• Strip and other non-standard parts and so on.

Available in the below bushing types

Available in the bushing types	Tolerance
Straight sets, flange, thrust washers, skateboards, and other non-standard parts and other products	Generally recommended housing bore tolerance H7, shaft tolerance f7