USER HANDBOOK for EDT BEARINGS

1 user HANDBOOK . for EDT BEARINGS . (Updated October 2015). PRODUCT GUIDE. INSTALLATION. GENERAL OPERATION. MAINTENANCE. LUBRICATION. TROUBLE SHOOTING. EDT Corp 1006-J NE 146th Street, Vancouver, WA 98685 USA. PHONE 360-574-7294 FAX 360-574-3834 Table of Contents EDT bearing Selection 3. What are Plane BEARINGS : Definitions of Class I, II, III, IV Plane 4. bearing Design Checklist (BDC).. 5. PV Calculation Chart and 6. Installation Instructions Poly-Round BEARINGS : Installing into EDT 7. Mounted 8. Poly-Round BEARINGS : Installing into NON-EDT 9. All-Round BEARINGS : Replacing flange BEARINGS into spherical 10.

2 All-Round BEARINGS : Installing spherical insert into Ball BEARINGS : Installing into 12. Ball BEARINGS : Installing unit onto 13. High Temperature Locations: Installing EDT 14. Polymer Block 15. Stainless Take-Up 16. Unmounted 17. bearing Glove .. 18. Glove 20. Special Application Conditions 21. 21. 22. Horizontal Shafts in ovens, all others, upside-down 22 23. bearing position in drive 23. Restricted 23. Vertical 25. Vibration & 25. Installation and General Information about EDT 26. Ways to Increase bearing 27. Maintenance and Lubrication of EDT 28. Troubleshooting EDT 29. O-2 PURPLE 1015 360-574-7294 FAX 360-574-3834 EDT Corp EDT bearing Selection Guide A quick application reference for EDT products This is a general reference.

3 For specific recommendations concerning your applications, contact EDT Corp or your local distributor account manager. You will be asked to complete a bearing Design Checklist (BDC) to assist in this process. A blank bearing Design Checklist can be found on page O-5. Refer to this catalog bearing application Type of bearing to use or website section Modular plastic belt conveyor NA Poly-Round bearing B (Amber) - Poly-Round Solution . Wire belt conveyor NA Poly-Round bearing B (Amber) - Poly-Round Solution . (flat- or round-wire). Wire belt conveyor in oven, QF Poly-Round bearing in metal housing F (Lt.)

4 Gray) - Stainless Spherical idler rollers (Note: in most cases cast iron housings are used Solution Housings and inside ovens). C (Dk Blue) - Poly-Round BEARINGS Wire belt conveyor in ovens, Ball or other rolling element; standard or F (Lt. Gray) - Stainless Ball Solution . head and tail puleys solid-lubricated Submerged fryer FA Poly-Round bearing in stainless housing C (Dk Blue) - Poly-Round BEARINGS for direct food contact and QF Poly-Round bearing in stainless housing F (Lt. Gray) - Stainless Spherical for incidental food contact Solution Housings Flat-belt and urethane belt Ball or other rolling element; standard or F (Lt.

5 Gray) - Stainless Ball Solution . conveyor solid-lubricated Table-top conveyor Ball or other rolling element; standard or F (Lt. Gray) - Stainless Ball Solution . (usually high speed and solid-lubricated multi curved). V-belt drive or unsupported Ball or other rolling element; standard or F (Lt. Gray) - Stainless Ball Solution . overhung load solid-lubricated Fans, some pumps Ball or other rolling element; standard or F (Lt. Gray) - Stainless Ball Solution . solid-lubricated (For plane BEARINGS : contact Graphalloy at 914-968-8400 or Trunnion Ball or other rolling element; standard or F (Lt.)

6 Gray) - Stainless Ball Solution . solid-lubricated Reversing motion or frequent Poly-Round or Cylindrical Poly Round or B (Amber) - Poly-Round Solution . start/stop motion Radial Poly-Round or C (Dk Blue) - Poly-Round BEARINGS or K (Dk. Gray) - Unmounted Radial BEARINGS High load + low speed All-Round or D (Red) - All-Round Solution . combination Poly-Round or or Cylindrical Poly-Round B (Amber) - Poly-Round Solution . (may require metal housing). Low load + high speed Ball or other rolling element; standard or F (Lt. Gray) - Stainless Ball Solution . combination solid-lubricated EDT Corp 360-574-7294 FAX 360-574-3834 PURPLE 1015 O-3.

7 What are Plane BEARINGS ? All BEARINGS provide a sacrificial and disposable Class II. product between moving parts that are easier and A lubricated bearing whose source of lubricant comes less expensive to replace than more costly and less from within the bearing wall. In some cases the lubricant disposable components. (This is different than a is added after the bearing is in its final physical form, bushing which is a device designed to fill an empty and in others the lubricant is built into the matrix of the space and has no other particular function.) material during the manufacturing process.

8 In either Plane BEARINGS are devices that have no rolling case, when the lubricant contained within the bearing components. They are designed to maintain the wall has been exhausted, the journal will contact the centerline position of a shaft or establish a precise bearing wall and will fail in the application. location of a structure. The name comes from Primary materials Sintered metals (primarily bronze), the geometry plane that establishes the point of polymers (oil filled), ceramic, wood. operation. Principle of operation In a perfect design, the fluid film Plane BEARINGS are divided into four classes based (lubricant) separates the journal from the bearing wall on the way each type works.

9 During normal operation, and eliminates wear. Class I Class III. A lubricated bearing whose source of lubricant must A bearing that requires no separate lubrication, and fails come from the outside. In order to be effective the when the bearing wall has been exhausted or when lubricant must always be present; an absence of the bearing material has broken down. Failure occurs the lubricant will result in the journal contacting the when the journal centerline can no longer be sufficiently bearing wall, and failure of the application. maintained for the application, or the load can no Primary materials Brass, bronze, iron, babbitt, longer be sustained.

10 The bearing must give up of itself steel, polymer, wood, phenolic (micarta), elastomer, in order to perform. (See chart below for list of primary ceramic. materials.). Principle of operation In a perfect design, the fluid Principle of operation A very thin film of material on film (lubricant) separates the journal from the bearing the journal that is scraped from the inside of the bearing wall during normal operation, and eliminates wear. by the journal provides a suitable working interface between the journal and bearing wall. Class lV. Any other product that qualifies as a plane bearing by virtue of meeting all of the requirements of the plane bearing definition, but that do not fall into any of the first three classes by its operation.