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
Alloy Steel Single Joints

Resources

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