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NTN 63309ZZC3/EM is a 63 series single-row deep groove ball bearing with a 45 mm straight bore. It features double shielded steel enclosures, C3 internal clearance, and a machined brass cage. Constructed from high carbon chrome steel, this bearing is suitable for electric motors, pumps, and general industrial rotating machinery.
MODEL 63309ZZC3/EM
$202.82 Each
Prices are subject to change
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Returnable:No
Axial Static Load Rating
7194 lbf
Axial static load rating
7194 lbf
B (in)
1.5630
Ball Material
Through Hardened Steel
Ball material
Through hardened steel
Bore Type
Round
Bore type
Round
Cage Material
Pressed Steel
Cage material
Pressed steel
Cage Type
Pressed
Cage type
Pressed
Configuration
One
d (in)
1.7720
D (in)
3.9370
Dynamic Load Rating
13152 lbf
Dynamic load rating
13152 lbf
Enclosure
Metal Shield - Both Sides
Factor
13.1
I.D.
45 mm
Limiting Speed - Grease
7000 RPM
Limiting speed - grease
7000 RPM
Material
High carbon chrome steel
O.D.
100 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Outside Ring Type
0
Precision
ISO class 0
r (in)
0.0984
Radial Dynamic Load Rating
13151 lbf
Radial Internal Clearance
C3
Radial internal clearance
C3
Seal material
None
Seal type
None
Static Load Rating
7194 lbf
Static load rating
7194 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 - Grease | 7000 RPM |
Seal Type | None |
Seal Material | None |
Precision | ISO Class 0 |
Configuration | One |
Factor | 13.1 |
Radial Internal Clearance | C3 |
Static Load Rating | 7200 lbf32000 N32.00 kN |
Dynamic Load Rating | 11900 lbf53000 N53.00 kN |
Enclosure | Double Shielded |
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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