Contents
What is an eccentric locking collar?
Eccentric Collar Shaft Lock Eccentric collars are counterbored to engage with the bearing’s inner ring. They use positive binding, which means over time, the hold becomes stronger. Since eccentric collars don’t loosen, the shaft is safe from scarring caused by loose screws.
How do you put a lock collar on a bearing?
Slide the eccentric collar against the mating end of the insert inner race. Snug the collar on the mating eccentric in the direction of shaft rotation. Place a mild steel bar inside the hole provided by the collar and tap the collar sharply in the direction of shaft rotation and perpendicular to the shaft.
How does an eccentric locking collar work?
The locking collar has a counterbored recess made purposely eccentric to the collar bore. When assembled on the shaft, this eccentric recess engages, or mates, with an eccentric cam end of a bearing’s inner ring. The collar is engaged on the inner cam of the bearing.
How do you remove a eccentric locking collar?
First use the hex wrench to loosen the locking screw on the eccentric sleeve of the bearing, and then use a small iron rod to insert the counterbore on the eccentric sleeve of the top cover, loosening the eccentricity against the direction of rotation of the shaft set.
What is collar bearing?
: a thrust bearing having a suitably formed face or faces that resist the axial pressure of one or more collars on a rotating shaft.
How do I remove a bearing lock collar?
Lock collar bearings are released using two pipe wrenches.. Remove /loosen the collar set-screws and place one pipe wrench on the shaft and the other on the collar.. Give the one on the collar a whack with a hammer and it should pop free and the bearing should slide right off the shaft unless it’s extremely rusted up..
What is thrust collar bearing?
Thrust collars transmit the net axial force from the aerodynamics and the gear mesh to the bull gear disk axial surface. From: Compression Machinery for Oil and Gas, 2019.
What is a thrust collar used for?
Thrust collars transmit the net axial force from the aerodynamics and the gear mesh to the bull gear disk axial surface.
Which is better eccentric or setscrew locking collar?
Eccentric locking collar mounted bearings contact the shaft over a larger surface area compared to setscrew mounted bearings. This can reduce shaft damage and fretting corrosion. Slide the eccentric collar against the mating end of the insert inner race.
How do you remove an eccentric locking collar?
To remove the bearing, loosen the setscrew, then tap the collar in the direction opposite the shaft rotation. Re-check tightness of the setscrew and hold down bolts after 24 hours of operation to insure nothing has loosened. This check should become part of periodic maintenance including re-lube intervals.
Which is the locking collar for ball bearings?
PTI offers all four (4) shaft locking mechanisms for mounted (aka “housed”) ball bearings: Let’s examine the second option: The Eccentric Locking Collar is a very popular locking mechanism for securing a mounted bearing to the shaft, second only to the Setscrew Locking method. Read on to learn more…
Which is part of the concentric clamp collar?
Click here to access Part One: The Setscrew Locking, Part Three: The Concentric Clamp Collar and Part Four: The Tapered Adapter Sleeve. About PTI: Upon opening in 1994, PTI has specialized in serving the growing niche market of Metric products.