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NTN TMB307ZC3 is a single-row deep groove ball bearing with a 35 mm bore, single shielded enclosure, and steel cage. Constructed from high carbon chrome steel, it is designed for general industrial rotating equipment such as electric motors, pumps, and fans.
MODEL TMB307ZC3
$71.21 Each
Prices are subject to change
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Returnable:No
B (in)
0.8268
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
D (in)
3.1496
d (in)
1.3780
Dynamic Load Rating
7550 lbf
Dynamic load rating
7550 lbf
Enclosure
Single Shielded
I.D.
35 mm
Limiting Speed - Grease
8800 RPM
Limiting speed - grease
8800 RPM
Limiting Speed - Oil
10000 RPM
Limiting speed - oil
10000 RPM
Material
High carbon chrome steel
O.D.
80 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
r (in)
0.0787
r1
0.0197 in
Radial Internal Clearance
C3
Radial internal clearance
C3
Static Load Rating
4300 lbf
Static load rating
4300 lbf
Type
Deep Groove Ball Bearing
Technical Specifications
Type | Deep Groove Ball Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Oil | 10000 RPM |
Limiting Speed - Grease | 8800 RPM |
Precision | ISO Class 0 |
Configuration | One |
Radial Internal Clearance | C3 |
Static Load Rating | 4300 lbf19100 N19.10 kN |
Dynamic Load Rating | 7550 lbf33500 N33.50 kN |
Enclosure | Single Shielded |
Weight | 0.988 lb0.448 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
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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