Curtis Replacement Parts & Boot Kits
- Do not require grooves on the hub of the joint to hold boot in place
- Boots help retain lubricant and keep out contaminants
- Standard boots have a useful temperature range of -60°F to +220°F
- Replacement for all universal joint parts are available
Resources
About the Take-Apart Joint
Boots Additional Resources
For both intermittent and continuously rated joints where lubrication such as an oil bath is not available, we recommend the use of boots suitable for grease packing to retain lubricant and keep our contaminants. These are available in kits for all sizes of single joints and can be used in pairs on the double joint. Curtis boots do not require grooves on the hub of the joint to hold the boot in place.
Curtis Boot Kits consist of one boot and two ties. Part numbers may be obtained on the Selection Guide provided below.
Curtis Standard Boots are typically manufactured from a polyvinyl chloride rubber blend, which is impervious to ozone and is ultraviolet stabilized. Our boots have a useful temperature range of -60°F to +220°F.
We can manufacture boots per your drawing requirements to meet your operating criteria or will design and fabricate boots to meet your specific needs. We can provide boots manufactured from various materials. For a list of available materials or advise on your operating environment and we will specify a material for your application. Send your requirements to us via the form on our Support Page for assistance in specifying a boot for your application.
Curtis Boot Kits consist of one boot and two nylon ties. Boots are typically manufactured from a polyvinyl chloride rubber blend which is impervious to ozone and is ultraviolet stabilized. Our boots have a useful temperature range of -60°F to 220°F.
Model | Universal Joint Diameter | Maximum Outside Diameter | Overall Length |
Standard Boots | A | B | C |
CJ641-9K | 0.375 | 1.313 | 1.313 |
CJ642-9K | 0.500 | 1.250 | 1.313 |
CJ643-9K | 0.625 | 1.500 | 1.438 |
CJ644-9K | 0.750 | 1.469 | 1.563 |
CJ645-9K | 0.875 | 2.000 | 1.813 |
CJ646-9K | 1.000 | 2.000 | 2.125 |
CJ647-9K | 1.125 | 2.563 | 2.438 |
CJ648-9K | 1.250 | 2.578 | 2.500 |
CJ650-9K | 1.500 | 2.781 | 3.250 |
CJ651-9K | 1.750 | 3.031 | 3.375 |
CJ652-9K | 2.000 | 3.500 | 4.188 |
CJ653-9K | 2.500 | 5.500 | 4.875 |
CJ654-9K | 3.000 | 6.000 | 5.625 |
CJ655-9K | 4.000 | 6.875 | 6.625 |
Low Profile Boots | |||
CJ646-9K/54841 | 1.000 | 1.375 | 1.620 |
CJ648-9LK | 1.250 | 1.846 | 2.063 |
CJ650-9LK | 1.500 | 2.078 | 2.563 |
NB652-9LK | 2.000 | 2.609 | 3.250 |
CJ654-9LK/79741 | 3.000 | 4.882 | 5.252 |
Metric Boots | |||
04M-9K | 25 mm | 48 mm | 50 mm |
1M-9K | 32 mm | 56 mm | 65 mm |
2M-9K | 36 mm | 66 mm | 72 mm |
5M-9K | 50 mm | 92 mm | 108 mm |