306474 D
300 Series Snap Ring Bearings
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Part No.
Part No.
306474 D
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
430000 g
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
760 mm
Bore diameter tolerance
-0.075mm to 0
Outside diameter
1080 mm
Outside diameter tolerance
-0.125mm to 0
Width
150 mm
Width tolerance
-0.75mm to 0
Outer Ring Dimensions
Outer ring locating feature
Locating Slot
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
207499 lbf
Radial static load rating
49458 lbf
Limiting speed
0.6 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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306474 D Bearing Product Overview & Core Advantages
The 306474 D is a single row deep groove ball bearing engineered for demanding industrial applications requiring exceptional radial load capacity and reliable performance. This open-type bearing features a robust construction with chrome steel rings and balls, providing high durability and resistance to wear. Its large bore diameter of 760 mm makes it suitable for heavy-duty machinery and large-scale equipment. The bearing is designed to operate effectively within a wide temperature range and complies with ROHS and REACH standards, ensuring environmental and safety compliance.
306474 D Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| D | Indicates a specific internal design or dimensional series for large bore bearings. |
| Open | No seals or shields, allowing for high-speed operation and custom lubrication solutions. |
| Locating Slot | A feature on the outer ring to facilitate axial location and secure mounting within the housing. |
306474 D Bearing Structural Features & Performance Benefits
- High Radial Load Capacity: The single row deep groove design and chrome steel components enable a high dynamic load rating of 207,499 lbf, making it ideal for applications with significant radial forces.
- Precision and Stability: Manufactured to P0 tolerance class with a standard CN radial internal clearance, ensuring consistent performance and smooth operation.
- Optimized Cage Design: The stainless steel cage provides excellent strength and corrosion resistance, contributing to the bearing's longevity and reliability at the specified limiting speed.
- Simplified Mounting: The outer ring locating slot allows for easier and more secure installation, reducing assembly time and improving positional accuracy.
306474 D Bearing Typical Application Areas
This bearing is commonly used in:
- Heavy Machinery: Large gearboxes, industrial fans, and rolling mill equipment.
- Material Handling: Conveyor system pulleys and large-diameter shafts.
- Mining and Construction Equipment: Crushers, screens, and other high-load machinery.
- Wind Turbines: Main shaft and generator applications requiring large bore bearings.
- Pulp and Paper Processing: Large rollers and drums.
