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NTN 7207BG is a single-row angular contact ball bearing with a 35 mm straight bore. Open type design with no seals or shields. Suitable for applications requiring combined radial and axial loads at moderate speeds.
MODEL 7207BG
$92.66 Each
Prices are subject to change
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Returnable:No
a (Load Center)
1.2205 in
B (in)
0.6693
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
Contact angle
40 º
D (in)
2.8346
d (in)
1.3780
Da max
2.5591 in
da min
1.6535 in
Db max
2.6575 in
db min
1.5551 in
Double Row Width
1.3386 in
Dynamic Load Rating
6100 lbf
Dynamic load rating
6100 lbf
Enclosure
Open
I.D.
35 mm
Limiting Speed - Grease
9300 RPM
Limiting speed - grease
9300 RPM
Limiting Speed - Oil
12000 RPM
Limiting speed - oil
12000 RPM
Material
High carbon chrome steel
O.D.
72 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
Quadruple Row Width
2.6772 in
r (in)
0.0433
r1
0.0236 in
r1as max
0.0236 in
ras max
0.0394 in
Static Load Rating
4150 lbf
Static load rating
4150 lbf
Triple Row Width
2.0079 in
Type
Angular Contact Ball Bearing
Width
17 mm
Technical Specifications
Type | Angular Contact Ball Bearing |
|---|---|
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Oil | 12000 RPM |
Limiting Speed - Grease | 9300 RPM |
Precision | ISO Class 0 |
Configuration | One |
Static Load Rating | 4150 lbf18400 N18.40 kN |
Dynamic Load Rating | 6100 lbf27100 N27.10 kN |
Enclosure | Open |
| 0.637 lb0.289 kg | |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.3780 in35.000 mm |
|---|---|
D | 2.8346 in72.000 mm |
B | 0.6693 in17.000 mm |
r | 0.0433 in1.100 mm |
r1 | 0.0236 in0.600 mm |
Contact Angle | 40 |
a (Load Center) | 1.2205 in31.000 mm |
da min | 1.6535 in42.000 mm |
db min | 1.5551 in39.500 mm |
Da max | 2.5591 in65.000 mm |
Db max | 2.6575 in67.500 mm |
ras max | 0.0394 in1.000 mm |
r1as max | 0.0236 in0.600 mm |
Double Row Width | 1.3386 in34.000 mm |
Triple Row Width | 2.0079 in51.000 mm |
Quadruple Row Width | 2.6772 in68.000 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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