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[China]
Address: Industry Park. JS, ZJ, China. 314100
Contact name:Tiffany
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Plain bearings are avialble with lubrication pockets, through-holes and grooves. This range is available in metric sizes.
Cusn8 Wrapped Bronze Gleitlager Bearings Metric Size For Mining
Flange 275 x 245 OD x 240 ID x 90 Long mm Flange Bushes, CuSn8 wrapped bronze bush with through holes, ISO3547 standard, Get a free quote.manufactures replacement bronze bushings parts for surface drill rigs. All these parts are manufactured in house to the highest quality bushing bearings standards.Equal to BMZ, BMB wrapped Bronze bushing with Oil Holes.Wrapped Bronze Bush: FB090 FB092 FB092H WF WB700 WB702 WB800 WB802
The bearings are wrapped with cold-formed homogeneous bronze CuSn8 (alternatively CuPb10Sn10) with exceptional material properties. Standard sizes contain holes that are scattered in a special way the entire bearing surface. These holes serve as grease reservoirs for rapid build-up lubricating film at the beginning of the movement, and then reduce the operating friction.
The wrapped bronze bearings are wound from a cold-formed homogeneous bronze (CuSn8) with exceptional material properties. The standard sizes of the wrapped bronze bearing-090 are equipped with diamond-shaped lubrication notches in the bearing surface. The standard sizes of wrapped bronze bearing-092 contain holes that are distributed in a special way over the entire storage area. These depressions serve as lubricant reservoirs to quickly build up a lubricating film at the beginning of the movement and then to reduce the running friction. The material is suitable for construction and agricultural machinery applications.
| Bronze alloy | Chemical Composition (%) | Type |
| CuSn8 | Cu=91.3% Sn=8.5% P=0.2% Pb=0% Zn=0% | Lead Free |
| CuPb10Sn10 | Cu=Balance. Sn= 9~11%, Pb=9~11% | With Lead |
AVAILABILITY
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
1. Easy to assemble and lubricate
2. High load capacity
3. Excellent wear resistance with less friction
4. High thermal conductivity
5. Minimum overall dimensions
6. Chemical resistance
7. Extended service life and lubrication intervals than with normal
bearings
8. Free choice of lubricants
9. Accumulation of dust and rubbing of particles in the holes.
Initial lubrication is required during assembly ...
Bronze Bearings and Bronze Sleeve Bushings made of CuSn8 with Lubrication Indents
| Max. load | Static | 120N/mm² | Hardness HB | HB 110-150 |
| Dynamic | 40N/mm² | Elongation | 40% | |
| Max. speed (Lubrication) | 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(mk)-1 | |
| Alloy hardness | 250N/mm² | Coef. of thermal expansion | 15x10-6k-1 | |
OPERATING PERFORMANCE | |
Dry | Poor |
Oil lubricated oilless slide bearing | Good |
Grease lubricated | Good |
Water lubricated | Poor |
Process fluid lubricated | Poor |
Generally recommended housing bore tolerance H7, shaft tolerance f7
The material is suitable for construction and agricultural machinery, etc., where heavy loads and slow movement occur.
This type of sleeve is widely used in hoisting machines and other
construction machines, automobiles, tractors, trucks, machine
tools, etc.
some mineral engines. It can be made in the form of bushings, shaft
bearings, flange bushings, thrust washers etc.
| Wrapped bushing, Bronze CuSn8P, 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] depending on lubrication | Max. PV-value | 2.8 [N/mm² x m/s] |
| Friction value | 0.05 [µ] to 0.12 [µ] | ||
| 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. Lubrication holes for maximum grease storage and the lowest maintenance intervals. | |||
| 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 lubrication holes 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. | |||
