Date: 2013-08-06

Material of crossed cylindrical roller slewing bearings

Material of  crossed cylindrical roller slewing bearings
The rings of medium size crossed cylindrical roller slewing bearings up to a mean raceway
diameter of 1 094 mm are made as standard of C 45 E tempered steel, in accordance with
EN 10083-2:2006. Crossed cylindrical roller slewing bearings with a mean raceway diameter
larger than 1 094 mm are made of 42CrMo4 bearing steel for induction hardening, in accordance
with EN 10083-3:2006.
The rings of customized crossed cylindrical roller slewing bearings are produced either from
• a modified heat-treatable 42 C 2 steel,in accordance with NFA 35-557:1983,or 46Cr2 steel, in accordance to EN 10083-3-2006
• a 42CrMo4 bearing steel for induction hardening,in accordance with EN10083-3:2006
Inner and outer ring raceways are surface induction-hardened while leaving the remainder of the rings, including the gears, unaffected
by the hardening process.
The cylindrical rollers are made of 100Cr6 bearing steel for through-hardening, in accordance with EN ISO 683-17:2000.

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