The DU® Cylindrical Bushes - Inch Size, specifically part number 7040DU, are designed for a variety of applications including aerospace, agricultural, construction, and medical equipment. These self-lubricating bushings provide excellent wear resistance and low friction performance across a wide range of loads, speeds, and temperatures, particularly in dry running conditions. They are suitable for linear, oscillating, and rotating movements and are approved for use in interior aircraft applications according to Federal Aviation Regulations FAR 25.853 and FAR 25.855. The maximum dynamic load capacity is 36,000 psi, with a static load capacity of 50,000 psi. The operating temperature range extends from -200°C to 280°C. The bushings exhibit a coefficient of friction between 0.02 and 0.25, depending on the operating conditions. They are available in standard dimensions and can be customized for specific applications, making them versatile for various engineering needs.
Our metal-backed, PTFE-based (polytetrafluoroethy
The metal backing provides mechanical strength, while the bronze sinter layer provides a strong mechanical bond between the backing and the bearing lining. This construction promotes dimensional stability and improves thermal conductivity.
These polymer bearing linings, being predominantly PTFE, offer exceptionally low friction.
| GGB | |
|---|---|
| Product Category | Plain Bearings and Sleeve Bearings |
| Product Number | 7040DU |
| Product Name | DU™ Cylindrical Bushes - Inch Size |
| Bushing Type | Sleeve |
| Design Units | Metric |
| Shaft OD | 2.7535 to 2.7547 inch (69.94 to 69.97 mm) |
| Housing Bore | 2.9528 to 2.9539 inch (75.00 to 75.03 mm) |
| Bearing ID | 2.7559 inch (70.00 mm) |
