GENTLE Floating Cylinder Joints|Universal Misalignment Compensation

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GENTLE_CJ

Cylinder Joints

  • Brand GENTLE Fittings
Features
  • Offset Compensation: Admits 0.5–1 mm axial eccentricity to reduce jig precision and alignment effort while preserving straight-line force transfer.
  • ±5° Swing Freedom: Absorbs angular misalignment and damps vibration for stable motion and repeatable positioning.
  • High Load Capacity: Up to 3,026 N thrust and 44,903 N tensile strength for high-cycle, heavy-duty applications.
  • Durable Construction: Nickel-plated components with a dust boot resist corrosion and particle ingress for long-term smooth operation.
  • Full Size Coverage: M3×0.5 through M14×1.5 to match common cylinder rods and fixture interfaces.
  • Applications: Semiconductor vacuum pick-and-place and alignment axes; SMT/PCB clamp/locator jigs; CNC clamping/ejector mechanisms; robot end-effectors; linear guide modules for offset correction; retrofit and calibration on legacy equipment.
Specification

Metric Dimension

ModelMABCDEFGAA

U

Allowable Eccentricity

Screw SizePitch
CJ-3x0.5M30.5235121372.45.515.60.5
CJ-4x0.7M40.725.5512138.83.2718.10.5
CJ-5x0.8M50.8337141510.54822.40.5
CJ-6x1M61.036714151251025.50.5
CJS-8x1M81.038101920551221.50.5
CJS-8x1.25M81.2538101920551221.50.5
CJS-10x1.25M101.2548122425.5861428.50.75
CJS-12x1.25M121.2559.5163032871733.51.0
CJS-14x1.5M141.563.51630321181937.51.0
CJL-8x1M81.0471019201451230.50.5
CJL-8x1.25M81.25471019201451230.50.5
CJL-10x1.25M101.2557122425.51761437.50.75
CJL-12x1.25M121.2570.51630321971744.51.0
CJL-14x1.5M141.572.51630322081946.51.0
FAQ

Q1: How do offset joints differ from standard joints?
A: They compensate both axial eccentricity (0.5–1 mm) and angular error (±5°), maintaining linear load transfer under assembly tolerances and reducing jig accuracy and alignment time.

 

Q2: How should I choose among CJ, CJS, and CJL for automation?
A: First select by thread size and required thrust/tensile rating, then choose compact (CJS) or reinforced (CJL) based on space and side-load conditions. For long strokes or impact, pick a higher tensile class with a safety margin.

 

Q3: Can maximum eccentricity and maximum angle be used simultaneously?
A: Treat the limits independently; using both near their maxima reduces practical allowance. Keep margin and validate on the actual machine.

 

Q4: What should I watch for in high-load or high-cycle duty?
A: Size with adequate safety factor. Where side impacts or vibration exist, use dust boots, lubricate per standard, and periodically check torque and wear.

 

Q5: Is it suitable for vacuum or cleanroom environments?
A: Yes, provided material compatibility and particle control are verified. Avoid excess lubricant and inspect the boot regularly to limit particle generation.

 

Q6: What's a good use case on CNC or precision machinery?
A: Mount on clamping/positioning cylinders to accommodate base tolerance and thermal growth, keeping coaxial loading while reducing guide side loads and seal wear.

 

Q7: Any guidance for semiconductor tooling?
A: On vacuum pickers or alignment actuators, the joint absorbs micro-offsets between carriers and jigs, reducing contact-induced particles; implement routine inspection/cleaning.

 

Q8: Do these joints require lubrication and periodic maintenance?
A: Apply light anti-corrosion oil per your standard to threads/joint areas. Inspect the boot, locking torque, and abnormal noise/vibration; replace consumables if worn.

 

Q9: What installation mistakes should be avoided?
A: Exceeding allowed eccentricity/angle, side hard impacts, over/under-tightening, insufficient straight guide length, and operating in dusty environments without protection.

 

Q10: Can I drop-in replace a ball joint with this type?
A: Often yes, but confirm thread spec, space envelope, allowed misalignment, and load conditions. Pilot-test before volume deployment.

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