Alloy Double Bored

Alloy Double Bored

Curtis double joints are available in 14 sizes, and share all of the advantages of Curtis single U-joints. Features include:

  • Bored Hubs are bored one-half of the O.D.
  • Material is alloy steel
  • Extra angularity allows standard units to operate at angles up to 70°.
  • Quick and easy TakeApart™ design for easy and economical disassembly and reassembly, with no special tooling required.
  • Firm, positive lockup of the entire assembly thanks to Curtis’ exclusive Tell-Tale Lock Ring.
  • Built-in lubrication passages with Curtis’ exclusive internal lubrication system.
  • Lubrication covers (boots) available in all sizes to retain lubrication and keep out contaminants, extending the life of the joint. Curtis Joints do not require grooves on hubs to retain boots.
  • Less galling and seizing because Curtis uses dissimilar materials on all bearing surfaces.
  • Maximum wear and strength from Curtis’ induction hardened forks.
  • Easy machinability due to Curtis’ soft hubs.
  • Smooth operations and longer life assured by close and well-controlled tolerances between mating parts and Curtis’ built-in lubrication system.
  • Perfect concentricity with hubs ground on center and centering holes provided on solid hubs to aid in machining.

Universal joint hub modifications are available per customer specifications, which include but may not be limited to bores, keyways, set screw holes, square holes and hex holes. Contact the Curtis sales department for more information.

Universal Applications

  • Concert Stages
  • Animated Characters
  • Conveyor Equipment
  • Clean Room Robotics
  • Hospital Equipment

Joints 78 inch or larger have Curtis’ user friendly Take Apart feature to allow for more specialized modification. Our large inventory allows O.E.M’s and users delivery on demand.

Also available in 303 stainless steel.

NOTE #1: Large bearing pin is provided with an oil passage. 1.00" through 4.00" diameter joints are also fitted with a ball spring oil fitting to retain lubricant.

NOTE #2: Curtis standard double universal joints will operate through angles of 70. For applications requiring greater angles, special design can be employed, enabling the joint to operate at angles up to 90.

Catalog
Number
Outside
Diameter
Bore
Diameter
Total
Length
Centerline
to
Centerline
Dimension
Static
Torque
Rating
 Inch Pounds
ABCE
CJ641DB0.3750.18752.4370.688140
CJ642DB0.5000.25002.8130.813425
CJ643DB0.6250.31253.2501.000900
CJ644DB0.7500.37503.8131.1251610
CJ645DB0.8750.43754.3751.3751800
CJ646DB1.0000.50004.8751.5003050
CJ647DB1.1250.56255.1251.6253500
CJ648DB1.2500.62505.6251.8755500
CJ650DB1.5000.75006.5632.3139000
CJ651DB1.7500.87507.7502.75014000
CJ652DB2.0001.00008.6253.18822000
CJ653DB2.5001.250011.0634.06332000
CJ654DB3.0001.500013.8134.81355000
CJ655DB4.0002.000017.0006.375131000