Unit 7

Lubrication

7. Lubrication

Lubrication is an effective and vital means for maintaining the life of your SANDEX unit. Lubrication can minimize wear by reducing friction between rolling members, removing friction heat, and preventing rust on rolling surface. The statistical life of the SANDEX unit is based on rolling fatigue. However, these statistics are valid only when wear, vibration, and mechanical seizure are kept at a minimum.

Improper lubrication over any of these areas can cause frictional wear in a very short time.

On the other hand, proper lubrication using incorrect grades of lubricating oils, such as low viscosity oil, can cause temperature rises and lower the dynamic viscosity of the lubricant. This means that the minimum dynamic viscosity necessary for forming an oil film cannot be obtained, thereby allowing the two surfaces to directly come into contact and cause frictional wear.

It is vitally important that proper lubrication procedures be implemented according to actual operating conditions.

4.5Purpose of lubrication

(a)To prevent friction between pure slipping members.

(b)To prevent abrasion by forming an oil film between two surfaces, thereby inhibiting direct contact between both surfaces.

(c)To extend the fatigue life of the material by introducing boundary based on oil film formation, thereby relieving Hertz stress.

(d)To prevent local temperature rises by transmitting and removing friction heat.

(e)To prevent dirt and other foreign particles from entering the housing.

(f)To prevent rust by using the oil film to keep the surface from direct exposure to the atmosphere.

7.2Oil selection precautions

(1)Lubrication is a vital factor to ensure maximum performance from your unit. The selection of lubricating oils is equally important. Improperly selected oils can lower the precision of the unit, and reduce its operating life. When selecting an oil, always give full consideration to actual operating conditions.

(2)When selecting oils, choose good quality gear oil with pressure additives, a strong oil coating quality, rust inhibiting properties, and steady oxidation. (A pressure additive is a specially formulated chemical composition that improves lubrication performance.)

(3)Never mix oils of different manufacturers even if they are used for the same purpose. This is because each manufacturer may use pressure additives with different compositions.

24

Page 24 Page 26
Page 25
Image 25
Sankyo 11AR manual Lubrication, Purpose of lubrication, Oil selection precautions
Page 24 Page 26

11AR specifications

The Sankyo 11AR is a pinnacle of innovation in the world of film projectors, combining advanced technology with user-friendly features that cater to both amateur and professional filmmakers. This model has established a reputation for reliability, quality, and versatility in various environments, making it a notable choice for those who appreciate the art of projecting film.

One of the main features of the Sankyo 11AR is its robust build quality. Designed with durable materials, it promises longevity while ensuring that performance remains consistent even under frequent use. The projector provides a smooth operation experience, thanks to its advanced optical system, which enhances image sharpness and clarity. This optical performance is critical for filmmakers who wish to maintain the integrity of their visual storytelling.

In terms of technology, the Sankyo 11AR incorporates a unique variable speed control feature, allowing users to adjust the playback speed to suit their needs. This is particularly beneficial for educational purposes or for specific artistic effects, enabling a broader range of creative possibilities. The projector also supports both 16mm and super 8mm film formats, which expands its usability across various film types and projects.

Another standout technology of the Sankyo 11AR is its sound integration capabilities. Equipped with a high-quality audio system, the projector facilitates synchronized audio playback, ensuring that sound and image are seamlessly aligned. This feature is invaluable for presentations, film screenings, and other events where audio quality is essential.

Additionally, the Sankyo 11AR features an easy threading system that simplifies the setup process for users. This intuitive design allows filmmakers to focus on their craft rather than struggling with cumbersome setups. The projector also boasts adjustable focus controls and zoom capabilities, providing users with the flexibility to achieve their desired framing and composition.

In conclusion, the Sankyo 11AR is a film projector that stands out due to its combination of durability, innovative technology, and user-friendly features. It serves as an ideal tool for filmmakers looking to project their work with precision and quality while also appealing to educational institutions and film enthusiasts. With its ability to adapt to various formats and playback requirements, the Sankyo 11AR remains a valued asset in the world of film projection.
Top Page Image Contents