VIIPLUS INTERNATIONAL |
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Wrapped phosphor tin bronze plain bearings, constructed from CuSn8/CW453K or CuSn6/CW452K alloy, offer exceptional self-lubricating properties and are designed as cylindrical oilless bushings. These bushings are engineered to provide smooth, reliable, and maintenance-free operation in a variety of applications.
The CuSn8/CW453K and CuSn6/CW452K alloys used in these bushings possess high strength, ductility, and corrosion resistance. Their self-lubricating properties eliminate the need for external lubricants, reducing friction, wear, and downtime.
The wrapped design of these plain bearings provides additional durability and stability, while the cylindrical shape ensures precise fit and alignment. These oilless bushings are ideal for use in high-load, low-speed applications where traditional bearings may fail due to insufficient lubrication or high wear rates.
Wrapped phosphor tin bronze CuSn8/CW453K & CuSn6/CW452K self-lubricating plain bearings, cylindrical oilless bushings, offer a cost-effective and reliable solution for applications requiring precision alignment, smooth operation, and long-term durability.
Wrapped bronze bushing is made of tin-bronze CuSn8P
Wide range of wrapped bronze bushing ready in stock. Able to satisfy any request and design need. Download the full Catalog to discover the technical features of wrapped bronze bushings. Products always in stock.
Viiplus is always focusing on the overseas markets, by satisfying the ever-increasing demands of modernization of customers. We could provide products according to the international standards, and could also provide as per the customers' requests. With stable product quality and best level of services, our products have been exported to dozens of countries and regions from the Europe, the United States, and Southeast Asia, etc.
Wrapped bronze bushings,similar PRM BuSHING &PRMF Flanged Bearings. Excellent in dirty environments due to lubrication pockets, which initially need to be filled with grease;available in metric sizes as straight or flanged bushings.
Phosphor tin bronze sliding bearing sleeve bronze with oil holes bushing.Phosphor bronze is characterized as a very pure alloy with extremely low content of impurities. Phosphor blends well with copper making the material hardly reacting on oxygen (oxidation).Phosphor tin bronze bushing is an alloy bearing and bushings with high wear resistance and good mechanical properties. There are Flange drawing of standard size inside diameter and outside diameter height different size and wall thicknesses available in phosphor tin bronze sliding bearings.
Chemical composition (standard Bronze Bushings for CuSn8/CW453K)
– Cu Rest
– Sn 7.5-8.5%
– P 0.01-0.04%
– Cu Rest
– Sn 5.5-7.0%
– P 0.01-0.04%
Mechanical properties (Cu Sn8/CW453K)
Yield strength (Rp N/mm²): >300 N/mm²
Tensile strength (Rm N/mm²): 450-540 N/mm²
Elongation in % A 5: 20-30%
Hardness/Brinell:120-170 HB
(All values = Nominal values)
Density ∼ 8.9
Mating material: Min. surface hardness 300 HB. Rec. surface
roughness < 1 Ra
Mechanical properties (Cu Sn6/CW452K)
Yield strength (Rp N/mm²):
Tensile strength (Rm N/mm²):
Elongation in % A 5: 20-30%
Hardness/Brinell (H160): 160-190 HB
Hardness/Brinell(H180):180-210HB
(All values = Nominal values)
Density ∼ 8.9
Mating material: Min. surface hardness 300 HB. Rec. surface
roughness < 1 Ra
Characteristics
The material is suitable for welding, soldering and brazing.
The material is also suitable for bonding.
Bronze bushing is a kind of wrapped self lubricating bearing.VIIPLUS Series bronze bearing is a kind of bushing wrapped by bronze strip. This type of bronze bearing is made of 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 high load capacity and long life. Compared with traditional cast bronze bushing, it is more cheap and more compact. Series wrapped bronze bushing is widely used in hoisting machines, construction machines, automobiles, trucks, machine tools, mineral equipment and etc.
CuSn8P or CuSn6P tin bronze bearing is an economical bearing with high bearing capacity and good wear resistance.The working surface of the product is covered with regular rhomboid oil holes, which play the role of oil storage and can easily form oil film during initial movement so as to reduce initial friction factors.Mainly used in agricultural machinery, construction machinery and other high-load low-speed occasions
Bronze Bearings made of CuSn8 with Lubrication Indents
Bronze Wrapped Bearing with Oil Pockets(090 CYLINDRICAL BUSHES)
Wrapped Bronze Bearings (low-maintenance), used for heavy load
applications, offered with lubrication pockets, grooves or thru
holes, plain or flanged bearings and strip
· Bearing material made of solid bronze strip with indents for
lubrication
· Good wear resistance, suitable for rough conditions
· Optimum performance under relatively high loads and low speeds
· 1.Easy for fitting and lubricating
· 2.High load capacity
· 3.Inner Diameter machineable parts are available against order
· 4.High level thermal conductivity
· 5.Minimum overall dimensions
· 6.Chemical resistance.
· Initial pre-lubrication at assembly required...
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 movement and thereafter reduce the running friction. The material is suitable for construction and agricultural machinery applications.
Surface can be incorporated with spherical of diamond shaped indentations or oil grooves linear. Particularly suitable for oscillating bearing.
High load capacity and long life.
Cheap than traditional bronze bush, cost saving.
Bronze Bearings and Bronze Sleeve Bushings made of CuSn8 with Lubrication Indents
CuSn8 with |
OPERATING PERFORMANCE | |
Dry | Poor |
Oil lubricated | Good |
Grease lubricated | Good |
Water lubricated | Poor |
Process fluid lubricated | Poor |
Max.Load | Static | 120N/mm² | Elongation | 40% |
Dynamic | 40N/mm² | |||
Temp | -100℃~+200℃ | |||
Coefficient of friction | 0.08~0.25 | |||
Max.speed(Lubrication) | Max.Speed | 2m/s | Thermal conductivity | 58W(m*k)-1 |
Max.PV | Max.PV | 2.8N/mm²*m/s | Coef. of thermal expansion | 18.5*10-6K-1 |
Tensile strength | Tensile strength | 450N/mm² |
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Hardness | Hardness | HB 100-150 |
Product NO. | Chemical Compositions | ||
VSB-22 | Cu | Sn | P |
91.3 | 8.3 | 0.2 |
Bearing forms available in standard dimensions
· Cylindrical bushes
Bearing forms made to order: cylindrical bushes with non-standard
dimensions, flanged bushes, sliding plates, customized bearing
designs
Bronze bushing is widely used in hoisting machines, construction machines, automobiles, tractors, trucks, machine tools and some mineral engines.
This type of bushing is widely applied in hoisting machines and
other construction machines, automobiles, tractors, trucks,
machines tools and some mineral engines. It can be fabricated into
bushes, half bearings, flanged bushes, taist washers, spherical
bearing andsoon.
Recommended fits
Tolerance shaft | h8 | |||
Tolerance housing | H7 |
Wrapped bushing, Bronze CuSn8, DIN 1494 / ISO 3547, Low-maintenance | |||
TECHNICAL DETAILS | |||
Specific load capacity static | < 120 [N/mm2] | Temperature strain | - 40 [°C] to + 250 [°C] |
Specific load capacity dynamic | < 40 [N/mm2] | ||
Sliding speed | ≤ 2.5 [m/s] | Max. PV-value | 2.8 [N/mm² x m/s] |
Friction value | 0.05 [µ] to 0.12 [µ] depending on lubrication | The percentage of contact area on the ID | > 75 [%] |
MATERIALS | |||
Support material | CuSn8P (DIN 17662) | alternative CuSn6P available | |
TOLERANCE DETAILS | |||
Housing Ø | H7 | Shaft tolerance | f7 to h8 |
Bushing inner-Ø after mounting | H9 | ||
SHAFT MATERIAL | |||
Steel, hardened or untempered | |||
Surface roughness ≤ Ra 0.8 | |||
PROPERTIES | |||
Economic solution for bronze bearing application due to a thin wall thickness. High load capability and good stability with low abrasion. Suitable for rough working conditions, good corrosion resistance. | |||
RANGE OF APPLICATION | |||
Agriculture machinery, truck cranes & construction machinery, suitable for impact loads | |||
MAINTENANCE | |||
It is a low maintenance bushing material. An initial greasing during installation is necessary, after that periodic greasing with oil or grease is mandatory. The diamond pockets are an excellent lubrication depot and keeping maintenance to a minimum. | |||
MOUNTING ADVISE | |||
Housing | Chamfer min. 1.5 mm x 15-45°, for easy bushing alignment | ||
Shaft | Chamfer 5 mm x 15°, for easy insertion of the shaft | ||
We advises to use a force fitting mandrel for the installation of the bushing. It might be necessary to apply some grease on the outer surface of the bushing when press fitting it into the housing. | |||
Gluing | Adhesive should not contact the sliding surface! |