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The NTN 5203NRZZG15 is a 5xxx series double-row angular contact ball bearing with a 17 mm straight bore. It features double shielded enclosures, a nylon cage, and includes a snap ring for axial location. Constructed from high carbon chrome steel, this bearing is designed for applications requiring combined radial and axial load capacity in a compact assembly.
MODEL 5203NRZZG15
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$51.47 Each
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Brand Minimum Order Quantity: 2
Typically Ships in: 1 day
Returnable:No
A (in)
0.0748
a (in)
0.8031
B (in)
0.6890
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Nylon
Cage material
Nylon
Cage Type
Fiber Glass Reinforced
Cage type
Fiber glass reinforced
Configuration
Two
D (in)
1.5748
d (in)
0.6693
D1
1.4902 in
D2
1.7559 in
Dynamic Load Rating
3300 lbf
Dynamic load rating
3300 lbf
Enclosure
Double Shielded
f (in)
0.0531
Limiting Speed - Grease
12000 RPM
Limiting speed - grease
12000 RPM
Material
High carbon chrome steel
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
Class 0
r (in)
0.0236
Radial Internal Clearance
CN
Radial internal clearance
CN
Seal material
None
Seal type
None
Static Load Rating
2020 lbf
Static load rating
2020 lbf
Type
Angular Contact Ball Bearing
Technical Specifications
| Type | Angular Contact Ball Bearing |
|---|---|
| Bore Type | Round |
| Material | High Carbon Chrome Steel |
| Cage Type | Fiber Glass Reinforced |
| Cage Material | Nylon |
| Ball Material | Steel |
| Limiting Speed - Grease | 12000 RPM |
| Seal Type | None |
| Seal Material | None |
| Precision | Class 0 |
| Configuration | Two |
| Radial Internal Clearance | CN |
| Static Load Rating | 2020 lbf9000 N9.00 kN |
| Dynamic Load Rating | 3300 lbf14600 N14.60 kN |
| Enclosure | Double Shielded |
| Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
| d | 0.6693 in17.000 mm |
|---|---|
| D | 1.5748 in40.000 mm |
| B | 0.6890 in17.500 mm |
| A | 0.0748 in1.900 mm |
| D2 | 1.7559 in44.600 mm |
| D1 | 1.4902 in37.850 mm |
| f | 0.0531 in1.350 mm |
| r | 0.0236 in0.600 mm |
| a | 0.8031 in20.400 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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