Koyo KOYO6316-2RDC3 Deep Groove Ball Bearing C3

Product Description

The KOYO KOYO6316-2RDC3 is a deep groove ball bearing designed for rotating equipment found in HVAC systems, electric motors, pumps, and industrial drives. It features a 80mm bore, 170mm outer diameter, and 39mm width. The bearing uses light contact seals on both sides, which reduce friction and operating torque compared to standard contact seals while still providing protection against contaminants. The C3 internal clearance designation allows for greater radial play than a standard bearing, making it well suited for applications involving elevated operating temperatures or interference-fit installations.

This bearing is a fit for electric motor shafts, blower assemblies, pump housings, and fan drives where higher clearance is required to accommodate thermal expansion. It is commonly installed in commercial and light industrial HVAC equipment, refrigeration compressors, and rotating machinery requiring a sealed, low-torque bearing solution. HVAC technicians, millwrights, and mechanical contractors typically handle installation in both field service and shop-rebuild scenarios.

Key Features

• 80mm bore x 170mm OD x 39mm width deep groove profile
• Light contact seals on both sides reduce running torque while limiting debris ingress
• C3 internal clearance accommodates thermal expansion and interference-fit shaft installations
• Deep groove design handles both radial and moderate axial loads
• Double-sealed construction reduces re-lubrication requirements in service

Compatibility

Designed as an OEM-style replacement deep groove ball bearing for electric motors, blower assemblies, and pump shafts requiring an 80mm bore, 170mm OD, 39mm width bearing with C3 clearance and double light contact seals.

Installation Notes

Installation should be performed by a qualified technician using a bearing press or installation sleeve that applies force only to the appropriate bearing ring — never drive a bearing into position by striking the outer ring when pressing onto a shaft. Shut down and lock out all power to the equipment before beginning work, following LOTO procedures in accordance with applicable safety codes. Ensure shaft and housing seats are clean and within specified dimensional tolerances before pressing the bearing into place. Avoid exposing the sealed bearing to solvent cleaning, which can degrade the seal material and flush lubrication.

Technical Specifications

• Bore Diameter: 80mm
• Outer Diameter: 170mm
• Width: 39mm
• Seal Type: Light contact seal, both sides (2RD)
• Internal Clearance: C3
• Bearing Type: Deep groove ball bearing

Standard Information

• Brand: KOYO
• Manufacturer Part Number: KOYO6316-2RDC3