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The NTN 6930ZZ is a 6900 series single-row deep groove ball bearing with a 150 mm straight bore. It features double steel shields (ZZ) for protection against contaminants. This bearing is designed for general industrial rotating equipment such as electric motors, pumps, and fans.
MODEL 6930ZZ
$376.71 Each
Prices are subject to change
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Returnable:No
B (in)
1.1024
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)
8.2677
d (in)
5.9055
Da max
7.9134 in
da min
6.2598 in
Dynamic Load Rating
21130 lbf
Dynamic load rating
21130 lbf
Enclosure
Double Shielded
Factor
16.5
I.D.
150 mm
Limiting Speed - Grease
3000 RPM
Limiting speed - grease
3000 RPM
Material
High carbon chrome steel
O.D.
210 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
r (in)
0.0787
Radial Internal Clearance
CN
Radial internal clearance
CN
ras max
0.0787 in
Seal material
None
Seal type
None
Static Load Rating
20300 lbf
Static load rating
20300 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 | 3000 RPM |
Seal Type | None |
Seal Material | None |
Precision | ISO Class 0 |
Configuration | One |
Factor | 16.5 |
Radial Internal Clearance | CN |
Static Load Rating | 20300 lbf90500 N90.50 kN |
Dynamic Load Rating | 19100 lbf85000 N85.00 kN |
Enclosure | Double Shielded |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 5.9055 in150.000 mm |
|---|---|
D | 8.2677 in210.000 mm |
B | 1.1024 in28.000 mm |
r | 0.0787 in2.000 mm |
da min | 6.2598 in159.000 mm |
Da max | 7.9134 in201.000 mm |
ras max | 0.0787 in2.000 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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