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Sliding Bronze Bearing

BRONZE WITH THROUGH HOLE SELF-LUBRICATING BEARING

StructureThe bearings are wrapped from a cold formed homogenous bronze (CuSn8) with exceptional material properties. The standard sizes of 090 bronze bushing are fitted with diamond shaped lubrication indents in the bearing surface. The standard sizes of 092 bronze bearings incorporate holes, which are dispersed in a special way over the whole bearing surface.These indents serve as lubricant reservoirs to rapidly build up a lubrication film at the start of movement and thereafter reduce the running friction. The material is suitable for construction and agricultural machinery applications.

Oil groove or oil hole can be designed as required
Can supply straight sleeve, flange, gasket and other styles
Standard or non-standard bearings can be supplied on request

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Description

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

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

 

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