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FAG 3209-BD double row angular contact ball bearing with 45mm bore and 85mm OD. Features a 40° contact angle for high axial load capacity in both directions. Suitable for applications requiring rigid guidance and high running accuracy.
MODEL 3209-BD
$66.85 Each
Prices are subject to change
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Returnable:No
Bearing Type
Angular Contact Bearings
Bore Type
Straight
Closure Type
Open
I.D.
1.772
O.D.
3.346
Product Type
Angular Contact Bearings
Row Type Fill Slot
Double-Row Filling Slot
Snap Ring Included
Without Snap Ring
Specifications
| d | 45 mm | |
| D | 85 mm | |
| B | 30, 2 mm |
| a | 50, 728 mm | |
| D 1 | 75, 1 mm | |
| D a max | 78 mm | |
| d 1 | 59, 9 mm | |
| d a min | 52 mm | |
| r a max | 1 mm | |
| r min | 1, 1 mm | |
| Contact angle | 30 ° | α |
| Mass | 0, 622 kg | m |
|---|---|---|
| Basic dynamic load rating, radial | 50000 N | C r |
| Basic static load rating, radial | 39000 N | C 0r |
| Fatigue limit load, radial | 2650 N | C ur |
| Limiting speed | 8300 1/min | n G |
| Reference speed | 8400 1/min | n B |
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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