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The NTN 6820C3 is a single-row deep groove ball bearing with a 100 mm straight bore. It features an open design with no seals or shields and C3 internal clearance for applications requiring thermal expansion accommodation. Suitable for electric motors, pumps, and general industrial machinery.
MODEL 6820C3
$417.84 Each
Prices are subject to change
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Returnable:No
B (in)
0.5118
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)
3.9370
D (in)
4.9213
da max
4.1732 in
Da max
4.7244 in
da min
4.1339 in
Dynamic Load Rating
4870 lbf
Dynamic load rating
4870 lbf
Enclosure
Open
Factor
16.0
I.D.
100 mm
Limiting Speed - Grease
4800 RPM
Limiting speed - grease
4800 RPM
Limiting Speed - Oil
5600 RPM
Limiting speed - oil
5600 RPM
Material
High carbon chrome steel
O.D.
125 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
Class 0
r (in)
0.0394
r1
0.0197 in
Radial Internal Clearance
C3
Radial internal clearance
C3
ras max
0.0394 in
Seal material
None
Seal type
None
Static Load Rating
4760 lbf
Static load rating
4760 lbf
Type
Deep Groove Ball Bearing
Technical Specifications
Type | Deep Groove Ball Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Oil | 5600 RPM |
Limiting Speed - Grease | 4800 RPM |
Seal Type | None |
Seal Material | None |
Precision | Class 0 |
Configuration | One |
Factor | 16.0 |
Radial Internal Clearance | C3 |
Static Load Rating | 4750 lbf21200 N21.20 kN |
Dynamic Load Rating | 4400 lbf19600 N19.60 kN |
Enclosure | Open |
Weight | 0.664 lb0.301 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
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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