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6404

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FAG 6404 deep groove ball bearing with 20mm bore and ball guided cage. This single row radial bearing accommodates radial and axial loads in both directions. Suitable for high-speed applications requiring low friction and quiet operation. Precision engineered by Schaeffler for reliable performance.

MODEL 6404

BRAND

SKU

2171390

WEIGHT

0.907 lb

UOM

each

$44.30 Each

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Bearing Modification Services

Typically Ships in: 1 day

Returnable:No

Cage

Ball Guided

I.D.

4/5 in

Limiting speed

13700 1/min n G

Mass

0, 414 kg m

Reference speed

12100 1/min n B

Specifications
d20 mm
D72 mm
B19 mm
D 159, 6 mm
D a max65 mm
d 144, 6 mm
d a min27 mm
r a max1 mm
r min1, 1 mm
Mass0, 414 kgm
Basic dynamic load rating, radial30500 NC r
Basic static load rating, radial16200 NC 0r
Limiting speed13700 1/minn G
Reference speed12100 1/minn B
Fatigue limit load, radial820 NC ur

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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$616.31 Each
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Item must be unused.

Item must be in it's original package.