
NTN WS81124 needle roller thrust bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Needle roller cages and components
- Series
- WS811
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Description
NTN WS81124 belongs to needle roller thrust bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for WS81124 and any equivalents.
For applications where axial loads must be handled in a tight radial envelope, the NTN WS811 series needle thrust bearing is a shaft washer component designed for predominantly axial forces. It pairs with a seat washer and needle assembly to create a complete bearing that mounts compactly and supports high loads in one direction. Typical uses include machine tools, gearboxes and lifting equipment where rigidity and minimal axial space are priorities. MR Industrial Accessories supplies the NTN WS811 series.
The WS811 designation breaks down as follows: WS denotes a shaft washer for a needle thrust bearing, while 811 is the dimension series. The final digits, as in WS81113, WS81114 and WS81115, indicate the specific size. Each code corresponds to a unique combination of diameter and width, so always confirm the full designation when ordering a replacement.
These bearings appear in metalworking, food processing, mining and packaging operations, where equipment runs under axial loads at moderate speeds. Common examples include presses, extruders, cranes and rotary tables. The needle design keeps the radial section very low, making it suitable for confined spaces. MR Industrial Accessories supplies them across the United States and in several Latin American countries, with technical support to select the right series.
Proper selection of a needle thrust bearing depends on axial load, speed, lubrication and mounting type. The WS811 series is typically installed with a GS811 seat washer and a K811 needle assembly to form a complete unit. Precise alignment and adequate lubrication, whether grease or oil, are essential for service life. Sealing requirements vary with the environment; in contaminated areas, additional seals are recommended to protect the bearing.
NTN WS811 series needle thrust bearings can be interchanged with products from other brands that use the same dimensional nomenclature. However, tolerances and load capacities may differ between manufacturers, so compatibility should always be verified before replacement. If you have a code from another brand, we can help you find the equivalent NTN reference or another brand that meets your needs.
To request a quote for a WS811 series needle thrust bearing, send us the complete code or the dimensions from your equipment via WhatsApp or email. We quote the exact reference you need and provide advice to ensure the correct selection.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the designation WS811 mean?
- WS indicates a shaft washer for a needle thrust bearing, and 811 is the dimension series. The final digits, such as in WS81113, identify the specific size. Always use the complete code when requesting a replacement.
- Does this bearing include the seat washer?
- The WS811 code covers only the shaft washer with needles. A complete bearing also requires the GS811 seat washer and, in some cases, the K811 needle assembly. Contact us by WhatsApp to quote the full assembly.
- How do I know if it is compatible with my equipment?
- Check the mounting dimensions: shaft diameter, outer diameter and width. If you have the original code, we can quote the equivalent NTN reference. If not, send us the measurements and we will help you select the right bearing.

