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PRODUCT

The NATR series yoke-type track roller bearing has a crowned cylindrical outer ring shape and is suitable for supporting high static and dynamic loads in track-type applications. The crowned outer ring provides resistance to roller misalignment and the yoke-type design is appropriate for heavier loads or where clevis or shaft mounting is preferred. A thick-walled outer ring helps minimize deformation under heavy radial and shock loads. This track roller has needle bearings held in place by a pressed steel cage that spaces the rollers for even load distribution and prevents contact to reduce friction, vibration, and noise. The roller is unsealed for applications in which contamination is not a factor.

 

The outer ring of NATR bearing design is guided axially by pressed-on flange rings. The narrow gap between the flange ring and the outer ring serves as a gap-type seal. This structure is also available with an axial sliding ring on both sides, identified by the designation suffix PPA. The axial sliding rings are made of polyamide 66.

 

In the radial direction, the sliding ring forms a narrow labyrinth seal with the outer ring, to protect against coarse contaminants. In the axial direction, the sliding ring serves as a contact seal to reliably retain grease in the bearing. This improves the lubrication conditions in the bearing, keeps friction and heat low, and extends grease service life.

 

Application

This track roller bearing NATR series is suitable for use in a broad range of linear and motion translation applications including process transfer lines, ram support rollers, conveyors, machine tools, and indexing equipment.

 

Bearing ModelDimensions(mm)Basic Load Rating(N)Weight(Kg)
Without inner ringWith inner ringDdBCrsDyn.CStat.Co
NATR5NATR5PP516121112380033000.014
NATR6NATR6PP619121114425039000.02
NATR8NATR8PP824151419680064000.041
NATR10NATR10PP1030151423810084000.064
NATR12NATR12PP1232151425870088000.071
NATR15NATR15PP153519182712900141000.101
NATR17NATR17PP174021203214200155000.144
NATR20NATR20PP204725243719500255000.246
NATR25NATR25PP255225244221200265000.275
NATR30NATR30PP306229285134000385000.47
NATR35NATR35PP357229285837000445000.682
NATR40NATR40PP408032306649000590000.824
NATR45NATR45PP458532307251000590001.02
NATR50NATR50PP509032307652000590001.24


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