Koyo KOYO6207-ZZC3 Deep Groove Ball Bearing 1.38 in

Product Description

The KOYO KOYO6207-ZZC3 is a deep groove ball bearing designed for moderate radial and low axial load applications. It features a round bore with a 1.38-inch inner diameter and is built from high carbon, high chromium Japanese steel. The ZZ designation indicates double metal shields, and the C3 suffix denotes greater-than-normal radial internal clearance, making this bearing well suited for applications where thermal expansion or higher operating speeds require additional internal play. This bearing is installed by maintenance technicians and mechanical service professionals across a wide range of industrial and OEM equipment.

The KOYO6207-ZZC3 fits into the 6200 series bearing family and is appropriate for use in electric motors, pumps, fans, blowers, conveyors, and light industrial machinery where moderate radial loads are present. The double metal shield design helps retain grease and reduce contamination ingress without the added drag of contact seals, supporting application in environments where moderate cleanliness and rotational efficiency are both priorities. This bearing is a common replacement component in HVAC fan motors, pump assemblies, and general mechanical drive systems.

Key Features

• Double metal shields (ZZ) retain lubrication and reduce particulate ingress without contact seal drag
• C3 internal clearance provides greater-than-normal radial play, accommodating thermal expansion at elevated speeds
• High carbon, high chromium Japanese steel construction for consistent dimensional accuracy and load performance
• Static load rating of 3462 lbf (15.4 kN) supports moderate radial load applications
• Limiting speed of 11000 rpm in oil lubrication suits a broad range of motor and pump applications
• Class 0 precision meets standard industrial tolerance requirements

Compatibility

Designed as an OEM-style replacement deep groove ball bearing for industrial motors, pumps, fans, and mechanical drive assemblies using a 6207 series bearing with double shields and C3 clearance.

Installation Notes

Installation should be performed by a qualified mechanical technician. De-energize and lock out all equipment before removing the existing bearing. Use a proper bearing press or puller to seat or remove the bearing without applying force through the rolling elements. Do not hammer directly on the bearing race. Verify shaft and housing tolerances are within acceptable limits before pressing the new bearing into service.

Technical Specifications

• Series: 6200
• Inner Diameter (Bore): 1.38 inches
• Bore Type: Round Bore
• Shield / Seal Type: Double Metal Shield (ZZ)
• Seal Material: Metal
• Radial Internal Clearance: Greater Than Normal (C3)
• Static Load Rating: 3462 lbf (15.4 kN)
• Limiting Speed (Oil): 11000 rpm
• Temperature Range (Minimum): -22 degrees F
• Precision Class: Class 0
• Material: High Carbon High Chromium Steel

Standard Information

• Brand: KOYO
• Manufacturer Part Number: KOYO6207-ZZC3