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NTN 6221C3 62 series single-row deep groove ball bearing with a 105 mm straight bore. Open enclosure, steel cage, and C3 clearance for thermal expansion accommodation. Constructed from high carbon chrome steel for electric motors, pumps, and general industrial rotating machinery.
MODEL 6221C3
$354.26 Each
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Returnable:No
Axial Static Load Rating
23605 lbf
Axial static load rating
23605 lbf
B (in)
1.4170
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)
7.4800
d (in)
4.1340
Da max
7.0472 in
da max
4.9213 in
da min
4.5669 in
Dynamic Load Rating
33049 lbf
Dynamic load rating
33049 lbf
Enclosure
Open
Factor
14.4
Height
7.48
I.D.
105 mm
Length
7.48
Limiting Speed - Grease
3400 RPM
Limiting speed - grease
3400 RPM
Limiting Speed - Oil
4200 RPM
Limiting speed - oil
4200 RPM
Material
High carbon chrome steel
O.D.
190 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)
0.0827
r1
0.0197 in
Radial Dynamic Load Rating
33047 lbf
Radial Internal Clearance
C3
Radial internal clearance
C3
ras max
0.0787 in
Seal material
None
Seal type
None
Static Load Rating
23606 lbf
Static load rating
23606 lbf
Type
Deep Groove Ball Bearing
Width
1.4173
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 | 4200 RPM |
Limiting Speed - Grease | 3500 RPM |
Seal Type | None |
Seal Material | None |
Precision | Class 0 |
Configuration | One |
Factor | 14.4 |
Radial Internal Clearance | C3 |
Static Load Rating | 20900 lbf93000 N105.00 kN |
Dynamic Load Rating | 27400 lbf122000 N133.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 4.1339 in105.000 mm |
|---|---|
D | 7.4803 in190.000 mm |
B | 1.4173 in36.000 mm |
r | 0.0827 in2.100 mm |
r1 | 0.0197 in0.500 mm |
da min | 4.5669 in116.000 mm |
da max | 4.9213 in125.000 mm |
Da max | 7.0472 in179.000 mm |
ras max | 0.0787 in2.000 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 are the dimensions and typical uses of a 6200 series ball bearing?
A standard 6200 ball bearing has: • 10 mm bore • 30 mm outer diameter • 9 mm width The 6200 series sits within the deep groove ball bearing family and is designed for light to moderate loads at relatively high speeds. You’ll typically find them in electric motors, small gearboxes, pumps, and general industrial equipment. They’re popular because they’re compact, widely available, and cost effective. Different variants exist such as sealed, shielded, or high clearance versions, depending on the application.
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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