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NTN 7407BG is a single-row angular contact ball bearing with a 35 mm straight bore. It features an open enclosure and a brass cage, designed for high-speed and moderate axial load applications. Constructed from high carbon chrome steel, this bearing is suitable for pumps, compressors, and machine tool spindles.
MODEL 7407BG
$196.46 Each
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a (Load Center)
1.6142 in
B (in)
0.9843
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Brass
Cage material
Brass
Cage Type
High Strength, 2 piece, Machined
Cage type
High strength, 2 piece, machined
Configuration
One
Contact angle
40 º
D (in)
3.9370
d (in)
1.3780
Double Row Width
1.9685 in
Dynamic Load Rating
11600 lbf
Dynamic load rating
11600 lbf
Enclosure
Open
I.D.
35 mm
Limiting Speed - Grease
4500 RPM
Limiting speed - grease
4500 RPM
Limiting Speed - Oil
8000 RPM
Limiting speed - oil
8000 RPM
Material
High carbon chrome steel
O.D.
100 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
Quadruple Row Width
3.9370 in
r (in)
0.0394
r1
0.0236 in
Static Load Rating
7350 lbf
Static load rating
7350 lbf
Triple Row Width
2.9528 in
Type
Angular Contact Ball Bearing
Width
25 mm
Technical Specifications
Type |
Angular Contact Ball Bearing |
Bore Type |
Round |
Material |
High Carbon Chrome Steel |
Cage Type |
High Strength, 2 piece, Machined |
Cage Material |
Brass |
Ball Material |
Steel |
Limiting Speed - Oil |
8000 RPM |
Limiting Speed - Grease |
4500 RPM |
Precision |
ISO Class 0 |
Configuration |
One |
Static Load Rating |
7350 lbf32700 N32.70 kN |
Dynamic Load Rating |
11600 lbf51600 N51.60 kN |
Enclosure |
Open |
Weight |
2.421 lb1.098 kg |
Operating Temperature Range |
-40 to 250 F-40 to 120 C |
Dimensional Specifications
|
|
|
d |
1.3780 in35.000 mm |
D |
3.9370 in100.000 mm |
B |
0.9843 in25.000 mm |
r |
0.0394 in1.000 mm |
r1 |
0.0236 in0.600 mm |
Contact Angle |
40 |
a (Load Center) |
1.6142 in41.000 mm |
Double Row Width |
1.9685 in50.000 mm |
Triple Row Width |
2.9528 in75.000 mm |
Quadruple Row Width |
3.9370 in100.000 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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