scope:

Types of flexible couplings

This standard covers the lubrication of the following types of flexible couplings and generally applies to other types of lubricated couplings.

- gear couplings;

- chain couplings;

- metallic grid couplings.

Some types of flexible couplings do not require lubrication.

Types of lubricants

The types of lubricants for flexible couplings covered in this standard are:

- oils;

- greases.

NOTE: Correct lubrication can minimize wear, but it is not a substitute for correct alignment.

Lubrication methods and practices

The flexible coupling lubrication methods and practices covered in this standard are:

- Self-contained lubricant. In this category lubricants can be oils or greases.

- Externally supplied lubricant. In this category, the couplings can be continuously supplied with oil at a specified flow rate, be dip lubricated, submerged in oil, or intermittently lubricated with oil that is replenished periodically.

Application limitations

Food and drug industry

The lubricants covered by this standard are not recommended for food and drug industry applications where contact with the product being manufactured may occur. The user must assume the responsibility for selecting the proper lubricant for all food and drug industry applications.

Experience

Coupling manufacturer's recommendations may vary for a specific application based on experience.

Cooling

This standard does not apply to couplings where an oil flow is provided solely for cooling purposes.