1.2.4 Ultra Super Chain
Super-heavy transmission
Application Example
Ultra Super Chain has the highest tensile strength and greatest allowable tension of any chain that can mate with a standard sprocket. These features also allow the drive train of the equipment to be smaller. (See Figure 1.6.)
Figure 1.6 Ultra Super Roller Chain
Construction and Features
Ultra Super Chains have the same chain pitch, roller diameter, and width between inner link plates as ANSI Standard Chain. However, the link plate thickness is the same as the next-larger chain. The pin diameter is larger than ANSI Standard Chains. Table 1.5 compares RS100 Roller Chain and 100 Ultra Super Chain. In this chain series, both the average tensile strength and maximum allowable tension are increased, even over Super-H Chains. Number 100 Ultra Super Chains have the same maximum tension as RS140, which is two sizes larger.
| Average Tensile Strength | Maximum Allowable Load | |
|---|---|---|
| RS100 | 118 kN | 22.6 kN |
| US100 | 172 kN | 39.2 kN |
| Ratio | 1.45 | 1.73 |
Sprockets
See "Super Roller Chain" Section.
Selection and Handling
- Choose these chains using the guidelines for low-speed selection.
- Ultra Super Chain is available in sizes 100 through 240. (Number 180 is not available.)
- Ultra Super Chain is not available in multiple strand.
- Due to the hardness of plates being higher than other carbon steel roller chains, Ultra Super Chains have a greater risk of hydrogen embrittlement. Other points of notice are the same as Super-H Roller Chain.
