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NTN 7812CG/GNP4 single-row angular contact ball bearing with 60 mm straight bore. Open enclosure, phenolic cage, P4 precision class. High carbon chrome steel construction for high-speed machine tool spindle applications.
MODEL 7812CG/GNP4
$798.84 Each
Prices are subject to change
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Returnable:No
a (Load Center)
0.5630 in
B (in)
0.3937
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Phenolic
Cage material
Phenolic
Cage Type
Machined
Cage type
Machined
Configuration
One
Contact angle
15 º
d (in)
2.3622
D (in)
3.0709
d1
2.5827 in
D2
2.9409 in
Da max
2.9724 in
da min
2.4606 in
Db max
3.0236 in
Double Row Width
0.7874 in
Dynamic Load Rating
3000 lbf
Dynamic load rating
3000 lbf
Enclosure
Open
Factor
16.3
I.D.
60 mm
Limiting Speed - Grease
12200 RPM
Limiting speed - grease
12200 RPM
Limiting Speed - Oil
16200 RPM
Limiting speed - oil
16200 RPM
Material
High carbon chrome steel
O.D.
78 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 4
Preload
Normal
Quadruple Row Width
1.5748 in
r (in)
0.0118
r1
0.0059 in
r1as max
0.0059 in
ras max
0.0118 in
Static Load Rating
3050 lbf
Static load rating
3050 lbf
Triple Row Width
1.1811 in
Type
Angular Contact Ball Bearing
Technical Specifications
Type | Angular Contact Ball Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Machined |
Cage Material | Phenolic |
Ball Material | Steel |
Limiting Speed - Oil | 16200 RPM |
Limiting Speed - Grease | 12200 RPM |
Precision | ISO Class 4 |
Configuration | One |
Preload | Normal |
Factor | 16.3 |
Static Load Rating | 3050 lbf13600 N13.60 kN |
Dynamic Load Rating | 3000 lbf13400 N13.40 kN |
Enclosure | Open |
Weight | 0.218 lb0.099 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 2.3622 in60.000 mm |
D | 3.0709 in78.000 mm |
B | 0.3937 in10.000 mm |
r | 0.0118 in0.300 mm |
r1 | 0.0059 in0.150 mm |
Contact Angle | 15 |
a (Load Center) | 0.5630 in14.300 mm |
da min | 2.4606 in62.500 mm |
Da max | 2.9724 in75.500 mm |
Db max | 3.0236 in76.800 mm |
ras max | 0.0118 in0.300 mm |
r1as max | 0.0059 in0.150 mm |
d1 | 2.5827 in65.600 mm |
D2 | 2.9409 in74.700 mm |
Double Row Width | 0.7874 in20.000 mm |
Triple Row Width | 1.1811 in30.000 mm |
Quadruple Row Width | 1.5748 in40.000 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 | Consolidated Bearings |
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| Brand | MRO Supply |
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| Brand | MRO Supply |
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