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Timken 7209WN SU super precision angular contact ball bearing with 45mm bore and 40° contact angle. Single row design for combined radial and thrust loads in machine tool spindles, pumps, and gearboxes. High axial rigidity and precise operation for high-speed arrangements.
MODEL 7209WN SU
$126.53 Each
Prices are subject to change
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Returnable: Yes
0.748 in Cage type
Ball Piloted, Pressed Brass Cage Contact angle:40 Design units:Metric Inner ring backing diameter:49.3 mm
1.940 in Limiting speed (grease)
4625 RPM Limiting speed (oil):6165 RPM O.D. (in):85 mm 3.3465 Outer ring backing diameter:78.00 mm
3.070 in Static radial rating
25900 N
Ball type
Steel Bearing width:19 mm
Ball Type
STEEL
Bearing Width
19 mm 0.748 in
Bore
45 mm
C0 - Static Radial Rating
25900 N 5850 lbf
Cage Type
Ball Piloted, Pressed Brass Cage
Ce - Dynamic Radial Rating
40500 N 9150 lbf
Contact Angle
40 º
d - Bore
45 mm
D - Outer Diameter
85 mm 3.3465 in
da - Inner Ring Backing Diameter
49.3 mm 1.940 in
Da - Outer Ring Backing Diameter
78.00 mm 3.070 in
Design Units
Metric
DOuter Ring Backing Diameter
78.00 mm 3.070 in
Dynamic Radial Rating
40500 N 9150 lbf
I.D.
45 mm
Inner Ring 'To Clear' Radius
1.1 mm 0.043 in
Inner Ring Backing Diameter
49.3 mm 1.940 in
Limiting Speed (Grease)
4625 rpm
Limiting Speed (Oil)
6165 rpm
Outer Diameter
85 mm 3.3465 in
Outer Ring 'To Clear' Radius
1.1 mm 0.043 in
R - Inner Ring "To Clear" Radius
1.1 mm 0.043 in
r - Outer Ring "To Clear" Radius
1.1 mm 0.043 in
Static Radial Rating
25900 N 5850 lbf
Timken angular contact ball bearings are designed for combination radial and axial loading. Single-row bearings have high thrust capacity in one direction. Some single-row bearings are specifically designed for duplex mounting in sets for maximum performance.
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