Brochure

G-104
Performance Cylindrical OD Bearings (ER)
Performance Cylindrical OD Bearings (ER)
®
Mtd. Ball
Bearings
ERX-TREME Options continued
High Temperature
ERX-TREME Expansion - High Temperature "HIY"
• Expansion type HI Temperature utilizes a half-dog setscrew combined with
a lock wire and is recommended for applications that require expansion
capability.
• High temperature bearing with increased radial internal clearance to
accommodate thermal expansion of components
• High temperature Nomex seal and Krytox*-226 grease
• Specify as ERX-xx HIY
This may be essential when shafts grow in length due to temperature changes.
The single half-dog setscrew has a cylindrical nub that protrudes out of the
bottom of the setscrew. The nub is used to mate loosely with a slot milled into
the shafting. As the shaft spins, the nub interferes with the slot and positively
turns the inner ring. See HIY installation instructions.
Note: All expansion bearings must be used in conjunction with a xed bearing
to stabilize the system.
Sufx Description Temperature Environment Speed Limits
HI*
High Performance High Temp 200°F to 400°F Dry/Dusty Pages G-235 to G-240
HIY
ERX-TREME High Temperature "HI"
• High temperature bearing with increased internal clearance to
accommodate thermal expansion of components
• High temperature Nomex seal* and Krytox*-226 grease
* The following trade names, trademarks and/or registered trademarks are used in this material by Emerson Power Transmission
Corporation are NOT owned or controlled by Emerson Power Transmission Corporation and are believed to be owned by the
following parties: NOMEX and Krytox: El du Pont de Nemurs and Company. Emerson Power Transmission Corporation cannot and
does not represent or warrant the accuracy of this information.
KRYTOX Extended Lube Grease
• Used in HI and HIY sufx modied bearings
• KYRTOX GPL 226, an extremely high performance perourinated oil and
PTFE thickened grease
• KRYTOX grease has a superior service life and therefore diminishes re-
lubrication frequency and extends life
• Engineers have found that, compared to other high temperature greases,
the thermal stability and lubricity of the KRYTOX can improve high
temperature bearing life by a factor of 4 to 45 times