Eaton
Eaton E50KL539 limit switch lever arm rotary roller 3.75 in
Adjustable stainless-steel roller lever arm, 1.00 to 3.75 in, fits E50AR16P limit switches
- Adjustable roller arm fits varied positions
- Stainless steel arm resists corrosion in harsh environments
- Metal roller withstands repeated mechanical actuation
- 00 to 3.75 in arm length suits multiple installations
- Front roller position enables direct cam engagement
Eaton E50KL539 Lever Arm
This Eaton E50KL539 limit switch lever arm provides adjustable rotary roller actuation for compatible E50 series switches. The stainless steel arm extends from 1.00 in to 3.75 in and features a front-positioned metal roller measuring 0.69 in diameter by 0.25 in width. It is designed for machinery requiring precise position sensing through rotational movement.
Replaces Fixed or Shorter Arms
This lever arm replaces fixed-length or shorter actuators when application travel exceeds the original reach. The adjustable 1.00 in to 3.75 in range allows technicians to set the exact engagement point without fabricating custom brackets. The upgrade is worth it when the roller must clear obstructions or match a specific cam profile that a standard arm cannot reach.
Mechanical Interface Limits
The arm mounts only to Eaton E50AR16P or E50AR1 switch bodies using the designated mounting pattern. Roller diameter of 0.69 in and width of 0.25 in define the contact surface, limiting side-load capacity and minimum cam radius. Arm depth of 4.6 in and width of 0.69 in restrict installation in confined machine frames where clearance is tight.
Highlights
- Adjustable roller arm fits varied positions
- Stainless steel arm resists corrosion in harsh environments
- Metal roller withstands repeated mechanical actuation
- 00 to 3.75 in arm length suits multiple installations
- Front roller position enables direct cam engagement
Specifications
| Brand | EATON |
|---|
Questions about this item
What arm length range does the E50KL539 lever arm cover?
The lever arm adjusts from 1.00 in to 3.75 in, so you set the exact reach needed for the roller to engage the cam.
How do you mount the lever arm onto the E50AR16P switch body?
Slide the arm onto the rotary shaft, align the keyway, then tighten the clamp bolt to 16 in-lb; the step often missed is confirming the roller faces front before torquing.
Which parts wear first and need replacement on the E50KL539?
The 0.69 in metal roller and 0.25 in wide bearing surface take the contact load; inspect them monthly and swap the arm when the roller shows flat spots or excess play.
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