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NTN TMB208LLUC3 is a deep groove ball bearing with a 40 mm bore, double sealed with contact rubber seals, C3 clearance, and a steel cage. Constructed from high carbon chrome steel, it is designed for applications requiring reduced radial space and moderate axial loads.
MODEL TMB208LLUC3
$73.58 Each
Prices are subject to change
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B (in)
0.7087
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)
1.5748
da max
2.0079 in
Da max
2.8937 in
Dynamic load rating
6550 lbf
Dynamic Load Rating
6550 lbf
Enclosure
Double Sealed
Factor
14.0
I.D.
40 mm
Limiting speed - grease
5600 RPM
Limiting Speed - Grease
5600 RPM
Material
High Carbon Chrome Steel
O.D.
80 mm
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision
ISO Class 0
r (in)
0.0394
r1
0.0118 in
Radial internal clearance
C3
Radial Internal Clearance
C3
ras max
0.0394 in
Seal material
Nitrile rubber
Seal Material
Nitrile Rubber
Seal type
Contact
Seal Type
Contact
Static load rating
4000 lbf
Static Load Rating
4000 lbf
Type
Deep Groove Ball Bearing
Width
18 mm
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 - Grease | 5600 RPM |
Seal Type | Contact |
Seal Material | Nitrile Rubber |
Precision | ISO Class 0 |
Configuration | One |
Factor | 14.0 |
Radial Internal Clearance | C3 |
Static Load Rating | 4000 lbf17800 N17.80 kN |
Dynamic Load Rating | 6550 lbf29100 N29.10 kN |
Enclosure | Double Sealed |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.5748 in40.000 mm |
|---|---|
D | 3.1496 in80.000 mm |
B | 0.7087 in18.000 mm |
r | 0.0394 in1.000 mm |
r1 | 0.0118 in0.300 mm |
da max | 2.0079 in51.000 mm |
Da max | 2.8937 in73.500 mm |
ras max | 0.0394 in1.000 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 | HubCity |
| Model | 0270-07211 |
