Marginal Bearing mg-cr 필라멘트 권선 플라스틱 자기 윤활 베어링 자기 윤활 베어링 및 부싱 전문 제조업체인 Marginal Bearing은 2010년에 설립되어 새로운 자기 윤활 베어링 재료 개발 및 제조에 전념하고 있습니다.
◆ Introduction
High strength glass fiber with epoxy resin baked with PTFE and special fiber as bearing lining, the back material provides high load capacity and bearing lining offers low friction under dry condition. Therefore, this special structure offered an outstanding anti-wear feature and anti-impact performance, suitable for high load with high corrosion resistance application like lifting machinery, logistic machinery, agricultural machinery, and port machinery etc.
◆ Material Structure:
◆ Technical Data
| Technical Data | ||||
| Basic type | MG-CRB Standard | MG-CRG High load | MG-CRP High speed | MG-CRF Economic |
 |  |  |  | |
| Density | 2 | 2 | 2 | 1.3 |
| (dry)*m/s Max. PV N/mm | 1.8 | 2 | 1.6 | 1.2 |
| Coecient of friction | 0.03-0.12 | 0.03-0.12 | 0.02-0.12 | 0.08-0.30 |
| Working Temp. ℃ | -100~+160 | -100~+160 | -100~+160 | -40~+130 |
| Max. Speed m/s | 0.2 | 0.2 | 0.4 | 0.13 |
| Max. load MPa | 420 | 420 | 420 | 300 |
| Static load MPa | 240 | 240 | 240 | 150 |
| Dynamic load MPa | 140 | 160 | 30 | 45 |
| Radial compressive strength MPa | 550 | 550 | 550 | 200 |
| HRR Rockwell hardness | 95 | 95 | 95 | 90 |
| Linear coef. of thermal Expansion(25 ~150"C) | 13 | 13 | 13 | 40 |
| Color | Coffee | Black | White | Dark grey |
◆ Wrapped bearings dimensional inspection
Wrapped bushes 1803547-2
Wall thickness measurement
| B(mm) | X(mm) | Measurement point |
| B ≦15 | B/2 | 1 | |
| 15≦ B ≦50 | 4 | 2 | |
| 50≦B ≦90 | 6 | 3 | |
| B>90 | 8 | 3 |
The wall thickness and the inside diamter shall not be specified together on the same drawing.
◆ Turmed bearings
Machined high precision bearings can be checked by pneumatic measuring tooling, three point micrometer, CMM measuring machines and so on.
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