KML Bearing USA deep groove ball bearings are manufactured to KML specifications in ISO9001 and TS-16949 certified facilities. The inner ring, outer ring and balls are produced using vacuum degassed 52100 bearing steel. These components are heat treat hardened to produce a durable wear surface on the balls and ball tracks.
KML uses cold rolled steel for ball retainers and shields. All KML ball bearings are factory lubricated using Chevron SRI#2 grease. Standard bearings are produced to ABEC 1 classification. Premium Series are produced to ABEC 3 classification.
- 2RS Sealed Ball Bearings
Industrial grade sealed ball bearings feature dual-lip non-contact seals on both sides. This low friction seal configuration is suited for general use bearing applications such as industrial equipment, material handling equipment and agricultural applications.
- ZZ Shielded Ball Bearings
Industrial grade shielded ball bearings feature metal shields on both sides. This low friction metal shield configuration provides increased protection from unanticipated contact with the exposed bearing surface. The shielded configuration does sacrifice the sealing performance from moisture but allows higher temperature operation and resilience to contact.
- 2RD Sealed Ball Bearings
Premium grade ABEC 3 sealed ball bearings feature triple-lip light contact seals on both sides. The KML Premium sealed ball bearing is noise tested and suitable for electric motor applications. This low friction seal configuration provides dual barrier channels that keep factory sealed lubricant in and moisture and contamination out.
- ZZ QE6 Shielded Ball Bearings
Premium grade ABEC 3 shielded ball bearings feature metal shields on both sides. The KML Premium shielded ball bearing is noise tested and suitable for electric motor applications. The metal shields provide increased protection from unwanted contact to exposed bearing surfaces while reducing friction between the bearing races.