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NTN 6018NR 60 series single-row deep groove ball bearing, 90 mm straight bore, open design with snap ring groove and snap ring for axial location. Suitable for electric motors, pumps, and general industrial rotating machinery.
MODEL 6018NR
$249.75 Each
Prices are subject to change
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Returnable:No
a (in)
0.1461
B (in)
0.9449
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)
5.5118
d (in)
3.5433
D1
5.3240 in
D2
5.8937 in
Da max
5.1969 in
da max
4.0157 in
da min
3.8583 in
Dynamic Load Rating
14500 lbf
Dynamic load rating
14500 lbf
Enclosure
Open
f (in)
0.1110
Factor
15.6
I.D.
90 mm
Limiting Speed - Grease
4700 RPM
Limiting speed - grease
4700 RPM
Limiting Speed - Oil
5600 RPM
Limiting speed - oil
5600 RPM
Material
High carbon chrome steel
O.D.
140 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
r (in)
0.0591
r1
0.0197 in
Radial Internal Clearance
CN
Radial internal clearance
CN
ras max
0.0591 in
Static Load Rating
11100 lbf
Static load rating
11100 lbf
Style
Radial ball bearing
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 - Oil | 5600 RPM |
Limiting Speed - Grease | 4700 RPM |
Precision | ISO Class 0 |
Configuration | One |
Factor | 15.6 |
Radial Internal Clearance | CN |
Static Load Rating | 11100 lbf49500 N49.50 kN |
Dynamic Load Rating | 13000 lbf58000 N58.00 kN |
Enclosure | Open |
Weight | 2.672 lb1.212 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 3.5433 in90.000 mm |
|---|---|
D | 5.5118 in140.000 mm |
B | 0.9449 in24.000 mm |
D1 | 5.3240 in135.230 mm |
D2 | 5.8937 in149.700 mm |
a | 0.1461 in3.710 mm |
f | 0.1110 in2.820 mm |
r | 0.0591 in1.500 mm |
r1 | 0.0197 in0.500 mm |
da min | 3.8583 in98.000 mm |
da max | 4.0157 in102.000 mm |
Da max | 5.1969 in132.000 mm |
ras max | 0.0591 in1.500 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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