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NTN 6305X5LLUC3/LP03 is a 63 series single-row deep groove ball bearing with a 25 mm straight bore. It features double contact rubber seals (NBR) for contamination protection, a stamped steel cage, and C3 internal clearance for thermal expansion. Made from high carbon chrome steel, it is suitable for electric motors, pumps, and general industrial rotating machinery.
MODEL 6305X5LLUC3/LP03
$71.04 Each
Prices are subject to change
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B (in)
0.6693
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)
0.9843
D (in)
2.4409
Da max
2.1850 in
da max
1.3780 in
Dynamic load rating
5280 lbf
Dynamic Load Rating
5280 lbf
Enclosure
Double Sealed
Factor
12.6
I.D.
25 mm
Limiting speed - grease
8100 RPM
Limiting Speed - Grease
8100 RPM
Material
High Carbon Chrome Steel
O.D.
62 mm
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision
ISO Class 0
r (in)
0.0433
r1
0.0197 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
2450 lbf
Static Load Rating
2450 lbf
Type
Deep Groove Ball Bearing
Width
17 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 | 8100 RPM |
Seal Type | Contact |
Seal Material | Nitrile Rubber |
Precision | ISO Class 0 |
Configuration | One |
Factor | 12.6 |
Radial Internal Clearance | C3 |
Static Load Rating | 2450 lbf10900 N10.90 kN |
Dynamic Load Rating | 4750 lbf21200 N21.20 kN |
Enclosure | Double Sealed |
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.
