6306-2RS2/C5VT312
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6306-2RS2/C5VT312
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
346 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.013mm to 0
Width
19 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
6002 lbf
Radial static load rating
3372 lbf
Limiting speed
9.6 X 1000 rpm
Lubrication
None
Radial internal clearance
C5
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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6306-2RS2/C5VT312 Bearing Product Overview & Core Advantages
The 6306-2RS2/C5VT312 is a metric single row deep groove ball bearing designed for high reliability in demanding applications. Its core advantage lies in its sealed design (2RS2), which provides effective protection against contaminants, and its optimized C5 radial internal clearance, which is suitable for applications with thermal expansion or requiring precise shaft positioning. This bearing is engineered to handle primarily radial loads efficiently and is manufactured to ABEC 1 | ISO P0 tolerance standards, ensuring consistent performance and interchangeability.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6306 | Basic bearing series and size designation (30mm bore, 72mm OD, 19mm width). |
| 2RS2 | Bearing is fitted with two high-performance synthetic rubber seals (RS2 type) on both sides, offering superior sealing effectiveness compared to standard rubber seals. |
| C5 | Indicates a greater than normal radial internal clearance. This is beneficial for applications involving thermal gradients, interference fits, or where lower operating temperatures are desired. |
| VT312 | Manufacturer-specific designation for the lubricant pre-filled in the bearing. This grease is suitable for the specified temperature range and operating conditions. |
6306-2RS2/C5VT312 Bearing Structural Features & Performance Benefits
- Robust Sealed Construction: The 2RS2 double seals effectively retain lubricant and exclude moisture, dust, and other contaminants, significantly extending bearing service life and enabling maintenance-free operation in many environments.
- Optimized Internal Clearance: The C5 radial clearance accommodates dimensional changes from thermal expansion in shafts and housings, preventing preload and ensuring smooth, low-friction operation under varying thermal conditions.
- High-Quality Material & Construction: Manufactured from chrome steel for rings, balls, and cage, this bearing offers high strength, durability, and resistance to wear. The single-row deep groove raceway is optimized for handling radial dynamic loads up to 6002 lbf.
- Ready-to-Install: The bearing is pre-lubricated with a high-quality grease (VT312), making it immediately ready for installation and operation, saving time and ensuring optimal initial performance.
6306-2RS2/C5VT312 Bearing Typical Application Areas
This sealed and pre-lubricated deep groove ball bearing is ideal for a wide range of industrial applications requiring reliable, low-maintenance operation, including:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- Automotive Components (Alternators, Pumps)
- Ventilation and Fan Systems
