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NTN WC88503 is a WC88000 series single-row deep groove ball bearing with a 17 mm straight bore. It features double contact rubber seals for effective contaminant exclusion. Designed for general industrial rotating equipment including electric motors, pumps, and fans.
MODEL WC88503
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$40.57 Each
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Brand Minimum Order Quantity: 2
Typically Ships in: 1 day
Returnable: See conditions
Ball material
Steel
Ball Material
Steel
Be (in)
0.5625
Bi (in)
0.6536
Bore type
Round
Bore Type
Round
Cage material
Steel
Cage Material
Steel
Cage type
Pressed
Cage Type
Pressed
Configuration
One
D (in)
1.5748
d (in)
0.6693
Dynamic load rating
2160 lbf
Dynamic Load Rating
2160 lbf
Enclosure
Double Sealed
I.D.
17 mm
Limiting speed - grease
12000 RPM
Limiting Speed - Grease
12000 RPM
Material
High Carbon Chrome Steel
O.D.
40 mm
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision
ISO Class 0
r (in)
0.0236
Radial internal clearance
CN
Radial Internal Clearance
CN
Seal material
Nitrile rubber
Seal Material
Nitrile Rubber
Seal type
Contact
Seal Type
Contact
Static load rating
1030 lbf
Static Load Rating
1030 lbf
Total width
0.6536 in
Type
Deep Groove Ball Bearing
Width
16.601 mm
Technical Specifications
Type | Deep Groove Ball Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Grease | 12000 RPM |
Seal Type | Contact |
Seal Material | Nitrile Rubber |
Configuration | One |
Radial Internal Clearance | CN |
Precision | ISO Class 0 |
Static Load Rating | 1030 lbf4600 N4.60 kN |
Dynamic Load Rating | 2160 lbf9600 N9.60 kN |
Enclosure | Double Sealed |
Weight | 0.201 lb0.091 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
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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