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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| Specifiion | Value |
|---|---|
| Model | 6306-2Z/C3GJN |
| Inner Diameter (ID) | 30mm |
| Outer Diameter (OD) | 72mm |
| Width | 19mm |
| Structure | Single row deep groove ball bearing, double 2Z metal shields, stamped steel cage |
| Material | GCr15 bearing steel |
| Gear Type (if any) | N/A |
| Internal Clearance | C3 |
| Grease | GJN polyurea grease (-30℃ ~ +150℃) |
| Basic Dynamic Load Cr | 29.6kN |
| Basic Static Load C0r | 16kN |
| Grease Limiting Speed | 11000 r/min |
???? 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?
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- Fast quotation within 24 hours
- Technical support from engineers
- Custom solution suggestions
- Competitive factory price
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Yes, we support OEM and custom production based on drawings or requirements.
Standard models: 7–15 days Custom products: depending on specifiions
Yes, we provide stable supply for long-term cooperation.
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