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NTN 51130 single direction thrust ball bearing with 150 mm straight bore. Separable construction for easy mounting and dismounting. Designed for axial loads in one direction in vertical shaft applications such as machine tools, presses, and gearboxes.
MODEL 51130
$635.89 Each
Prices are subject to change
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Returnable:No
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)
7.4803
d (in)
5.9055
D1
5.9843 in
d1
7.4016 in
Da max
6.8504 in
da min
6.8504 in
Dynamic Load Rating
24500 lbf
Dynamic load rating
24500 lbf
Enclosure
Open
I.D.
150 mm
Limiting Speed - Grease
1200 RPM
Limiting speed - grease
1200 RPM
Limiting Speed - Oil
1800 RPM
Limiting speed - oil
1800 RPM
Material
High carbon chrome steel
O.D.
190 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Outside Ring Type
Straight
Precision
ISO class 0
r (in)
0.0394
Radial Internal Clearance
CN
Radial internal clearance
CN
ras max
0.0394 in
Seal material
None
Seal type
None
Static Load Rating
90000 lbf
Static load rating
90000 lbf
T (in)
1.2205
Type
Thrust Ball Bearing
Width
31 mm
Technical Specifications
Type | Thrust Ball Bearing |
|---|---|
Bore Type | Round |
Outside Ring Type | Straight |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Oil | 1800 RPM |
Limiting Speed - Grease | 1200 RPM |
Seal Type | None |
Seal Material | None |
Precision | ISO Class 0 |
Configuration | One |
Radial Internal Clearance | CN |
Static Load Rating | 90000 lbf400000 N400.00 kN |
Dynamic Load Rating | 24500 lbf109000 N109.00 kN |
Enclosure | Open |
Weight | 4.255 lb1.930 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 5.9055 in150.000 mm |
|---|---|
D1 | 5.9843 in152.000 mm |
d1 | 7.4016 in188.000 mm |
D | 7.4803 in190.000 mm |
T | 1.2205 in31.000 mm |
r | 0.0394 in1.000 mm |
da min | 6.8504 in174.000 mm |
Da max | 6.8504 in174.000 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.
#5032817
Brand
NSK Bearings
Model
51130
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