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Timken 307WDDN deep groove radial ball bearing, 35mm bore, 80mm OD, 21mm width, single row. Designed for electric motors, pumps, and HVAC equipment requiring reliable low-friction rotation. Standard radial internal clearance for general industrial applications.
MODEL 307WDDN
$140.19 Each
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Returnable: Yes
0.8268 in Design units
Metric Inner ring backing diameter:42.90 mm
1.6890 in Limiting speed (grease)
4348 rpm Limiting speed (oil):5217 rpm O.D. (in):80 mm 3.1496 Outer ring backing diameter:71.10 mm
2.7992 in Static radial rating
28800 N
Ball type
Steel Bearing width:21 mm
Ball Type
STEEL
Bearing Width
21 mm 0.8268 in
Bore
35 mm
Design Units
Metric
DOuter Ring Backing Diameter
71.10 mm 2.7992 in
Dynamic Radial Rating
50200 N 11300 lbf
I.D.
35 mm
Inner Ring 'To Clear' Radius
1.5 mm 0.059 in
Inner Ring Backing Diameter
42.90 mm 1.6890 in
Limiting Speed (Grease)
4348 rpm
Limiting Speed (Oil)
5217 rpm
Outer Diameter
80 mm 3.1496 in
Outer Ring 'To Clear' Radius
1.5 mm 0.059 in
Static Radial Rating
28800 N 6480 lbf
Radial ball bearings consist of an inner and outer ring with a cage containing a complement of precision balls. The standard Conrad-type bearing has a deep-groove construction capable of handling radial and axial loads from either direction in versatile designs that permit relatively high-speed operation.
In addition to standard single-row deep groove bearings, Timken offers special designs, including a maximum capacity series and an extra large (XLS) radial series bearing.
Size range: 3 mm - 600 mm (0.12 in. - 23.62 in.) bore
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read moreHow 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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SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more