We never sell your data to third parties
NTN 51308P5 single direction thrust ball bearing with 40 mm bore. Straight bore design with precision P5 tolerance class. Designed for axial loads in one direction in machine tool spindles, gearboxes, and industrial drives.
MODEL 51308P5
$176.69 Each
Prices are subject to change
FREE SHIPPING ON ORDERS OVER $100
Select Quantity
Typically Ships in: 1 day
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)
1.5748
D (in)
3.0709
d1
3.0709 in
D1
1.6535 in
Da max
2.4803 in
da min
2.4803 in
Dynamic Load Rating
15500 lbf
Dynamic load rating
15500 lbf
Enclosure
Open
I.D.
40 mm
Limiting Speed - Grease
2200 RPM
Limiting speed - grease
2200 RPM
Limiting Speed - Oil
3100 RPM
Limiting speed - oil
3100 RPM
Material
High carbon chrome steel
O.D.
78 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Outside Ring Type
Straight
Precision
ISO Class 5
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
30500 lbf
Static load rating
30500 lbf
T (in)
1.0236
Type
Thrust Ball Bearing
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 | 3100 RPM |
Limiting Speed - Grease | 2200 RPM |
Seal Type | None |
Seal Material | None |
Precision | ISO Class 5 |
Configuration | One |
Radial Internal Clearance | CN |
Static Load Rating | 30500 lbf135000 N135.00 kN |
Dynamic Load Rating | 15500 lbf69000 N69.00 kN |
Enclosure | Open |
Weight | 1.168 lb0.530 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.5748 in40.000 mm |
|---|---|
D1 | 1.6535 in42.000 mm |
d1 | 3.0709 in78.000 mm |
D | 3.0709 in78.000 mm |
T | 1.0236 in26.000 mm |
r | 0.0394 in1.000 mm |
da min | 2.4803 in63.000 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.
| Brand | MRO Supply |
| Model | NVN-2204-SS |
| Brand | SKF Bearing |
| Model | NU 322 ECJ |
