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NTN CH7019HVJ04 is a single-row hybrid angular contact ball bearing with a 95 mm straight bore. Features ceramic balls, an open enclosure, and a phenolic cage for high-speed and high-precision applications. Constructed from high carbon chrome steel rings. Suitable for machine tool spindles and precision equipment.
MODEL CH7019HVJ04
$2,532.46 Each
Prices are subject to change
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Returnable:No
a (Load Center)
1.5748 in
B (in)
0.9449
Ball Material
Ceramic
Ball material
Ceramic
Bore Type
Round
Bore type
Round
Cage Material
Phenolic
Cage material
Phenolic
Cage Type
Stratified
Cage type
Stratified
Configuration
One
Contact angle
25 º
D (in)
5.7087
d (in)
3.7402
D1
5.1378 in
d2
4.3110 in
D4
5.3740 in
D5
0.1496 in
Double Row Width
1.8898 in
E (in)
3.800
Enclosure
Open
I.D.
95 mm
Limiting Speed - Grease
12610 RPM
Limiting speed - grease
12610 RPM
Limiting Speed - Oil
18850 RPM
Limiting speed - oil
18850 RPM
Material
High carbon chrome steel
O.D.
145 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 4
Quadruple Row Width
3.7795 in
r2 max
0.0591 in
r3 max
0.0394 in
Triple Row Width
2.8346 in
Type
Hybrid Angular Contact Ball Bearing
Technical Specifications
Type | Hybrid Angular Contact Ball Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Stratified |
Cage Material | Phenolic |
Ball Material | Ceramic |
Limiting Speed - Oil | 18850 RPM |
Limiting Speed - Grease | 12610 RPM |
Precision | ISO Class 4 |
Configuration | One |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 3.7402 in95.000 mm |
D | 5.7087 in145.000 mm |
B | 0.9449 in24.000 mm |
r2 max | 0.0591 in1.500 mm |
r3 max | 0.0394 in1.000 mm |
Contact Angle | 25 |
a (Load Center) | 1.5748 in40.000 mm |
d2 | 4.3110 in109.500 mm |
D1 | 5.1378 in130.500 mm |
D4 | 5.3740 in136.500 mm |
D5 | 0.1496 in4.5197 mm |
E | 3.800 in114.800 mm |
Double Row Width | 1.8898 in48.000 mm |
Triple Row Width | 2.8346 in72.000 mm |
Quadruple Row Width | 3.7795 in96.000 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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