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NTN 6301ZZC3/EM 63 series single-row deep groove ball bearing with a 12 mm straight bore. Features double metal shields (ZZ), C3 internal clearance, and a machined brass cage (EM). Suitable for electric motors, pumps, and general rotating machinery.
MODEL 6301ZZC3/EM
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$16.94 Each
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Brand Minimum Order Quantity: 5
Typically Ships in: 1 day
Returnable:No
B (in)
0.4724
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)
1.4567
d (in)
0.4724
Da max
1.2598 in
da max
0.7283 in
da min
0.6693 in
Dynamic Load Rating
2420 lbf
Dynamic load rating
2420 lbf
Enclosure
Double Shielded
Factor
11.1
I.D.
12 mm
Limiting Speed - Grease
20000 RPM
Limiting speed - grease
20000 RPM
Material
High carbon chrome steel
O.D.
37 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO 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
945 lbf
Static load rating
945 lbf
Type
Deep Groove Ball Bearing
Width
12 mm
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 - Grease | 20000 RPM |
Seal Type | None |
Seal Material | None |
Precision | ISO Class 0 |
Configuration | One |
Factor | 11.1 |
Radial Internal Clearance | C3 |
Static Load Rating | 945 lbf4200 N4.20 kN |
Dynamic Load Rating | 2180 lbf9700 N9.70 kN |
Enclosure | Double Shielded |
| 0.134 lb0.061 kg | |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 0.4724 in12.000 mm |
|---|---|
D | 1.4567 in37.000 mm |
B | 0.4724 in12.000 mm |
r | 0.0394 in1.000 mm |
r1 | 0.0197 in0.500 mm |
da min | 0.6693 in17.000 mm |
da max | 0.7283 in18.500 mm |
Da max | 1.2598 in32.000 mm |
ras max | 0.0394 in1.000 mm |
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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