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NTN 6317ZZ is a 63 series single-row deep groove ball bearing with an 85 mm straight bore. It features double metal shields (ZZ) for protection against contaminants while maintaining low friction. Designed for electric motors, pumps, fans, and general industrial rotating machinery.
MODEL 6317ZZ
$462.47 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
B (in)
1.6142
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)
7.0866
d (in)
3.3465
Da max
6.5748 in
da max
4.4094 in
da min
3.8583 in
Dynamic Load Rating
33040 lbf
Dynamic load rating
33040 lbf
Enclosure
Double Shielded
Factor
13.3
I.D.
85 mm
Limiting Speed - Grease
3800 RPM
Limiting speed - grease
3800 RPM
Material
High carbon chrome steel
O.D.
180 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
r (in)
0.1181
r1
0.0197 in
Radial Internal Clearance
CN
Radial internal clearance
CN
ras max
0.0984 in
Seal material
None
Seal type
None
Static Load Rating
21800 lbf
Static load rating
21800 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 | 3800 RPM |
Seal Type | None |
Seal Material | None |
Precision | ISO Class 0 |
Configuration | One |
Factor | 13.3 |
Radial Internal Clearance | CN |
Static Load Rating | 21800 lbf97000 N97.00 kN |
Dynamic Load Rating | 29900 lbf133000 N133.00 kN |
Enclosure | Double Shielded |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 3.3465 in85.000 mm |
|---|---|
D | 7.0866 in180.000 mm |
B | 1.6142 in41.000 mm |
r | 0.1181 in3.000 mm |
r1 | 0.0197 in0.500 mm |
da min | 3.8583 in98.000 mm |
da max | 4.4094 in112.000 mm |
Da max | 6.5748 in167.000 mm |
ras max | 0.0984 in2.500 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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