Koyo KOYO6319-ZZC3 Deep Groove Ball Bearing 95 Mm

Product Description

The KOYO KOYO6319-ZZC3 is a single-row deep groove radial ball bearing designed for applications where reliable rotational support and moderate contamination resistance are required. Built to the 63 series specification with a 95 mm bore, this bearing features double metal shields that help retain lubrication and block contaminants from reaching the rolling elements. The C3 internal clearance designation indicates a greater-than-standard radial play, making it suitable for applications where thermal expansion or press-fit installation conditions demand additional clearance. Licensed HVAC technicians, mechanical contractors, and industrial maintenance professionals install this style of bearing in motors, blowers, pumps, and drive assemblies across commercial and residential mechanical systems.

This bearing is appropriate for use in single-row radial load applications found in belt-driven blower assemblies, pump motors, fan shaft supports, and similar rotating equipment common in HVAC, plumbing, and light industrial environments. The double-shielded construction allows operation in environments with moderate airborne debris or moisture without requiring full sealed-bearing replacement intervals. The C3 clearance class makes this bearing a standard choice for shaft assemblies subject to elevated operating temperatures or interference-fit mounting conditions.

Key Features

• Single-row deep groove design handles radial loads and moderate axial loads in both directions
• Double metal shields (ZZ) retain grease and reduce ingress of particulate contamination
• C3 internal clearance provides greater-than-normal radial play for thermally demanding or press-fit applications
• 63 series heavy cross-section construction supports higher load ratings compared to 62 or 60 series equivalents
• Pre-lubricated with grease behind metal shields for service-ready installation

Compatibility

Designed as an OEM-style replacement for single-row deep groove ball bearings with a 95 mm bore in commercial and industrial rotating equipment applications.

Installation Notes

Installation should be performed by a qualified mechanical or HVAC technician. Always de-energize and lock out the equipment before removing or installing bearings. Use a bearing press or appropriate driver tool to apply force only to the press-fit ring; never strike the bearing directly with a hammer. Inspect the shaft and housing seats for wear, scoring, or out-of-round conditions before installing a replacement bearing.

Technical Specifications

• Series: 63
• Bore Diameter: 95 mm
• Row Configuration: Single Row
• Bearing Type: Deep Groove Radial Ball Bearing
• Shield Configuration: Double Metal Shield (ZZ)
• Internal Clearance: C3 (Greater Than Normal)
• Lubrication: Grease (factory-applied)

Standard Information

• Brand: KOYO
• Manufacturer Part Number: KOYO6319-ZZC3