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The NTN 6912LLBC3/EM is a 6900 series single-row deep groove ball bearing with a 60 mm straight bore. It features double non-contact rubber seals (LLB), a machined brass cage, and C3 clearance. Constructed from high carbon chrome steel, this bearing is designed for electric motors, pumps, and general rotating machinery.
MODEL 6912LLBC3/EM
$271.39 Each
Prices are subject to change
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Returnable:No
Axial Static Load Rating
3215 lbf
Axial static load rating
3215 lbf
B (in)
0.5120
Ball Material
Through Hardened Steel
Ball material
Through hardened steel
Bore Type
Round
Bore type
Round
Cage Material
Pressed Steel
Cage material
Pressed steel
Cage Type
Pressed
Cage type
Pressed
Configuration
One
D (in)
3.3460
d (in)
2.3620
Da max
3.1496 in
da max
2.6181 in
da min
2.5591 in
Dynamic Load Rating
4092 lbf
Dynamic load rating
4092 lbf
Enclosure
Non-Contact Seal - Both Sides
Factor
16.4
Height
3.347
I.D.
60 mm
Length
3.347
Limiting Speed - Grease
7600 RPM
Limiting speed - grease
7600 RPM
Material
High carbon chrome steel
O.D.
85 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Outside Ring Type
0
Precision
ISO class 0
r (in)
0.0394
r1
0.0197 in
Radial Dynamic Load Rating
4092 lbf
Radial Internal Clearance
C3
Radial internal clearance
C3
ras max
0.0394 in
Seal Material
Nitrile Rubber
Seal material
Nitrile rubber
Seal Type
Non-Contact
Seal type
Non-Contact
Static Load Rating
3215 lbf
Static load rating
3215 lbf
Type
Deep Groove Ball Bearing
Width
0.5118
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 | 7600 RPM |
Seal Type | Non-Contact |
Seal Material | Nitrile Rubber |
Precision | ISO Class 0 |
Configuration | One |
Factor | 16.4 |
Radial Internal Clearance | C3 |
Static Load Rating | 3200 lbf14300 N14.30 kN |
Dynamic Load Rating | 3700 lbf16400 N16.40 kN |
Enclosure | Double Sealed |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 2.3622 in60.000 mm |
|---|---|
D | 3.3465 in85.000 mm |
B | 0.5118 in13.000 mm |
r | 0.0394 in1.000 mm |
r1 | 0.0197 in0.500 mm |
da min | 2.5591 in65.000 mm |
da max | 2.6181 in66.500 mm |
Da max | 3.1496 in80.000 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.
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