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The NTN 6905LU/2AS is a 6900 series single-row deep groove ball bearing with a 25 mm straight bore. It features a single contact rubber seal (LU) on one side and is pre-greased with NTN factory-pack grease (/2AS). Designed for light-duty applications such as small electric motors, power tools, and instrumentation.
MODEL 6905LU/2AS
$85.12 Each
Prices are subject to change
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Returnable:No
B (in)
0.3543
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)
1.6535
Da max
1.5748 in
da max
1.1417 in
da min
1.0630 in
Dynamic Load Rating
1754 lbf
Dynamic load rating
1754 lbf
Enclosure
Single Seal
Factor
15.4
I.D.
25 mm
Limiting Speed - Grease
9800 RPM
Limiting speed - grease
9800 RPM
Limiting Speed - Oil
9800 RPM
Limiting speed - oil
9800 RPM
Material
High carbon chrome steel
O.D.
42 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
r (in)
0.0118
r1
0.0118 in
Radial Internal Clearance
CN
Radial internal clearance
CN
ras max
0.0118 in
Seal Material
Nitrile Rubber
Seal material
Nitrile rubber
Seal Type
Contact
Seal type
Contact
Static Load Rating
1020 lbf
Static load rating
1020 lbf
Type
Single Row Deep Grove Ball Bearing
Specifications
| Bearing Data Sheet | ||
|---|---|---|
| Single Row Deep Groove Ball Bearings | ||
| NTN Part Number | 6905 | |
| Dimensions | Features/Options | ||||
|---|---|---|---|---|---|
| Dimension | Imperial | Metric | Option | Code | Description |
| Bore d O.D.D. Width B or W rs min D1 max a max b min ro max rns min D2 max f max da min da max Da max ras max Dx min Cy max Cz min rnas max | 0.9843 (in) 1.6535 (in) 0.3543 (in) 0.0118 (in) 1.6024 (in) 0.0669 (in) 0.0374 (in) 0.0098 (in) 0.0118 (in) 1.7638 (in) 0.0335 (in) 1.0630 (in) 1.1417 (in) 1.5748 (in) 0.0118 (in) 1.7913 (in) 0.0906 (in) 0.0354 (in) 0.0118 (in) | 25.000 (mm) 42.000 (mm) 9.000 (mm) 0.300 (mm) 40.700 (mm) 1.700 (mm) 0.950 (mm) 0.250 (mm) 0.300 (mm) 44.800 (mm) 0.850 (mm) 27.000 (mm) 29.000 (mm) 40.000 (mm) 0.300 (mm) 45.500 (mm) 2.300 (mm) 0.900 (mm) 0.300 (mm) | Series Cage | 69 | Single Row Radial Ball Bearing 69 Series Pressed steel cage |
| Basic Load Ratings | Limiting Speeds | ||||
|---|---|---|---|---|---|
| Static Dynamic | 1, 020 (LBF) 1, 580 (LBF) | 4, 550 (N) 7, 050 (N) | | Oil Seals Grease | 19, 000.00 (RPM) N/A 16, 000.00 (RPM) |
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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