A good place to start is with the National Stone, Sand & Gravel Association (NSSGA) in Alexandria, Virginia. – www.nssga.org

Thank you for sharing your preference for our crusher parts. To respond to the second part of your question first, I’m afraid we’re unable to identify these p/n’s you’ve supplied. I’d encourage you to call our customer service department at 800-547-9471, Ext. 257, and see if we can help you.

Regarding the first part of your question – yes we do have parts for that Metso C-series crusher and they are as follows: the stationary jaw die is p/n 162300 and the movable is 162350. These are high tooth jaw dies featuring a 4-inch tooth pitch with a 3-inch tooth depth. The stationary has a 1-inch full curve rate and the movable has a half inch full curve rate. The tooth form is 20 percent deeper than the p/n’s you noted.

Again, you can contact our customer service department at service@columbiasteel.com or 800-547-9471 (503-286-0685 if outside US & Canada) at Ext. 257. They’ll help you with price and delivery information and whether there is a distributor of our products in your geographical area.

First source that comes to mind that may have that kind of information is the National Stone, Sand & Gravel Association in Alexandria, Virginia. www.nssga.org

Thank you for elucidating the origins of this line of crusher. The whole story of how some of this equipment came about isn’t always presented factually to us.

We’d like to see a way for you to be in contact with a fellow that’s claiming to have repeated bearing failures with a Gyracone; he wrote to this column around September 7th. The way this Q and A column is formatted doesn’t allow for the correspondents to know who or where the questions come from. Let’s hope he continues reading our column and can figure out a way to contact you.

All we could offer was generalities, since we’ve had little exposure to the Gyracone model and no model was noted in the September 7th inquiry. Here’s hoping he’s a continuing reader and can take advantage of your experience.

I believe El-Jay (Louis Johnson) crushers utilized roller bearings both radially and shaft mounted in the late 1960s.

I've not had a lot of exposure to the model you refer to, so I'm not familiar with its internal workings. My limited information on this model indicates these were made as a spin-off, or licensee arrangement, with the original Allis-Chalmers Hydrocone model crushers. The A-C machines were quite reliable relative to the area where you're experiencing problems.

Bearing failures in any crusher of structural substance involve lubrication, alignment, or clearances. The issues of proper lubrication focus on proper temperature, cleanliness and pressure.

If lubrication matters are known to be in order, machined fit alignments and clearances become the subject. Continual loss of bearing fit or proper clearance will eventually affect basic machined alignments and finish tolerances.

Start with the oil and then go to the measuring. I understand that the Jaques line of equipment is now a Terex property -- they should be in a position to help you with the details of your ongoing problem.