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NTN 7MC3-6314C3 6300 series single-row deep groove ball bearing with a 70 mm straight bore. Open design with no seals or shields and C3 internal clearance for thermal expansion accommodation. Suitable for electric motors, pumps, fans, and general rotating machinery.
MODEL 7MC3-6314C3
$706.17 Each
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B (in)
1.3780
Ball material
Steel
Ball Material
Steel
Bore type
Round
Bore Type
Round
Cage material
Steel
Cage Material
Steel
Cage type
Pressed
Cage Type
Pressed
Configuration
One
D (in)
5.9055
d (in)
2.7559
Da max
5.4724 in
da max
3.6417 in
da min
3.1890 in
Dynamic load rating
25850 lbf
Dynamic Load Rating
25850 lbf
Enclosure
Open
Factor
13.2
I.D.
70 mm
Limiting speed - grease
4600 RPM
Limiting Speed - Grease
4600 RPM
Limiting speed - oil
5400 RPM
Limiting Speed - Oil
5400 RPM
Material
High Carbon Chrome Steel
O.D.
150 mm
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision
Class 0
r (in)
0.0827
r1
0.0197 in
Radial internal clearance
C3
Radial Internal Clearance
C3
ras max
0.0787 in
Seal material
None
Seal type
None
Static load rating
15280 lbf
Static Load Rating
15280 lbf
Type
Deep Groove Ball Bearing
Bearings The **NTN Megaohm Single Row Radial Ball Bearing** (Catalog Number: 7MC3-6314C3) is a high-performance open-type bearing designed for a wide range of applications in the automotive and industrial sectors. Renowned for its durability and efficiency, this bearing is part of NTN's esteemed 6300 series, known for its robust construction and reliable operation. ## Key Features • **Type**: Single Row Radial Ball Bearing - Open Type • **Dimensions**: Inner Diameter (ID) - 70 mm, Outer Diameter (OD) - 150 mm, Width - 35 mm • **Dynamic Load Rating**: 120 kN, ensuring durability under various load conditions • **Static Load Rating**: 75 kN, providing reliability in stationary applications • **Operating Temperature Range**: -30°C to +120°C, suitable for diverse environmental conditions ## Applications • **Automotive**: Ideal for use in wheel hubs, transmissions, and various drivetrain components. • **Industrial**: Perfect for machinery and equipment requiring efficient rotational motion in manufacturing processes. • **Compatibility**: Fits various housing designs and is compatible with standard shaft sizes, making it versatile for multiple applications. ## Benefits • **Performance**: Enhanced energy efficiency through reduced friction, leading to lower operational costs and extended service life. • **Reliability**: Built to withstand high loads and adverse conditions, ensuring dependable performance in critical applications. • **Easy Installation**: Open-type design allows for straightforward installation and maintenance, minimizing downtime. --- *Product information compiled with AI assistance for reference purposes.*
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
What is the difference between deep groove and angular contact ball bearings?
Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.
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