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NTN 6008ZZNR 60 series single-row deep groove ball bearing with 40 mm straight bore. Double shielded (ZZ) steel enclosures retain grease and exclude contaminants. Steel cage and snap ring groove for axial location. High carbon chrome steel construction for electric motors, pumps, and general rotating machinery.
MODEL 6008ZZNR
$17.74 Each
Prices are subject to change
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Returnable:No
a (in)
0.0980
B (in)
0.5906
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)
1.5748
D (in)
2.6772
D1
2.5520 in
D2
2.9370 in
da max
1.8504 in
Da max
2.4803 in
da min
1.7717 in
Dynamic Load Rating
4180 lbf
Dynamic load rating
4180 lbf
Enclosure
Double Shielded
f (in)
0.0669
Factor
15.2
Height
2.937
I.D.
40 mm
Length
2.937
Limiting Speed - Grease
10000 RPM
Limiting speed - grease
10000 RPM
Material
High carbon chrome steel
O.D.
68 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
CN
Radial internal clearance
CN
ras max
0.0394 in
Static Load Rating
2590 lbf
Static load rating
2590 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 | 10000 RPM |
Precision | ISO Class 0 |
Configuration | One |
Factor | 15.2 |
Radial Internal Clearance | CN |
Static Load Rating | 2590 lbf11500 N11.50 kN |
Dynamic Load Rating | 3800 lbf16800 N16.80 kN |
Enclosure | Double Shielded |
Weight | 0.425 lb0.193 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.5748 in40.000 mm |
D | 2.6772 in68.000 mm |
B | 0.5906 in15.000 mm |
D1 | 2.5520 in64.820 mm |
D2 | 2.9370 in74.600 mm |
a | 0.0980 in2.490 mm |
f | 0.0669 in1.700 mm |
r | 0.0394 in1.000 mm |
r1 | 0.0197 in0.500 mm |
da min | 1.7717 in45.000 mm |
da max | 1.8504 in47.000 mm |
Da max | 2.4803 in63.000 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.