6306-2Z/C3GJN Single Row Double Metal Shield Deep Groove Ball Bearing 30×72×19mm C3 Clearance Pre-Filled GJN Polyurea Grease For Electric Motors

The 6306-2Z/C3GJN is designed for high-temperature electric motors, offering double-sided steel dust shields, C3 enlarged clearance and factory pre-filled GJN polyurea high-temperature grease.

It is widely used in industrial motors, fans and pumps where high speed, heat expansion and long maintenance-free operation are required.

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👉 Full technical data and drawings available upon request

• High load capacity for medium-speed motor equipment
• C3 clearance compensates shaft thermal expansion to avoid seizure
• 2Z steel shields block dry dust without friction loss for high speed
• GJN polyurea grease stable under wide temperature range, long service life
• Optimized deep groove raceway bears radial & bidirectional axial loads
• Custom design available (clearance, marking, packaging)

👉 Helps reduce maintenance cost and improve machine performance

This bearing is widely used in:

• Industrial three-phase electric motors
• Cooling fans and ventilation equipment
• Water pumps and light conveyor rollers
• Small agricultural machinery transmission parts
• General workshop medium-load rotary equipment

👉 Ideal for customers looking for reliable and long-life bearing solutions

• 25+ years experience in industrial bearing manufacturing
• Exported to 50+ countries worldwide
• Rich experience in OEM & custom motor bearing projects
• Strict quality inspection before shipment
• Fast response within 24 hours
• Stable supply for long-term cooperation

👉 We focus on quality, reliability, and long-term partnership

• Raw material inspection
• Precision machining process
• Heat treatment control
• C3 clearance & rotation noise testing
• Grease filling & sealing final inspection before delivery

👉 Ensuring consistent performance for every bearing

Looking for a reliable motor bearing supplier?

👉 Send your inquiry to get:

• Fast quotation within 24 hours
• Technical support from engineers
• Custom solution suggestions
• Competitive factory price

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