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Nachi Bearing 7307BMUC3 Angular Contact Ball Bearing Single Flush Ground 40 35mm Inner Diameter x 80mm Outer Diameter x 21mm Width Angular Contact Ball Bearing - Single - 40�
MODEL 7307BMUC3
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$63.59 Each
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Bore Type
Cylindrical
Cage Material
Machined High Strength Brass Cage
Closure Type
Open
Contact Angle (Deg)
40
Dynamic Load Capacity (N)
32500
Grease Fill
No Fill
Inner Diameter (mm)
35
Inner Ring Material
JIS SUJ2 Steel
Internal Clearance
C3
ISO Precision Class
P0
Limiting Speed - Grease (RPM)
7700
Limiting Speed - Oil (RPM)
10000
Max Operating Temp.
120°C (248°F)
Number of Rows
1
Outer Diameter (mm)
80
Outer Ring Material
JIS SUJ2 Steel
Preload
N/A
Rolling Element Material
JIS SUJ2 Steel
Seals or Shields
No
Series
7300
Snap Ring
No
Static Load Capacity (N)
20200
Universally (Flush) Ground
Yes
Width (mm)
10000
The single-row angular contact ball bearing was designed to support radial, axial or composite loads, however, the axial load must be in one direction. The high thrust capacity is achieved by a higher shoulder on one side of the outer ring. The direction of the load through the balls forms the contact angle. The thrust capacity increases with the contact angle. The BMU bearings are commonly referred to as thrust bearings. These bearings have a 40 deg contact angle to accept heavy axial loads. The bearings have Universally Flush Ground rings to facilitate mounting in multiple bearing sets. The inner and outer rings have identical widths. These bearings can be mounted as DB, DF and DT pairs or can be combined into triplex and quadraplex sets. When two bearings are mounted together, a clearance or preload may be obtained without the use of shims or spacers. This bearing has a machined brass cage and is not available with seals or shields. These bearings are most commonly used in vertical pump and motor applications. Higher precision. Increased speed and load carrying capacity. Support radial, axial or composite loads in only one direction. Capable of moment loads if used in pairs. Machined brass cage. Energy efficient. Low noise. The raceways of both the inner and outer rings of this bearing type are made with a set contact angle. This bearing type is generally used in adjacent positions.
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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