NTN WS81213 cylindrical roller thrust bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Cylindrical roller thrust bearings
- Series
- 812
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Description
NTN WS81213 belongs to cylindrical 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 WS81213 and any equivalents.
NTN cylindrical roller thrust bearings are engineered to handle heavy axial loads in a single direction. Their design, featuring cylindrical rollers and washers, delivers high load capacity and axial rigidity. These bearings are found in gearboxes, machine tool spindles, and lifting equipment, where precision and durability are essential.
The series code follows a logical pattern: the initial digits denote the bearing type, while the remaining digits indicate size. Suffixes like WS point to the shaft washer, which is often provided separately. For instance, WS81100 is the shaft washer for bearing 81100. Understanding this naming convention simplifies matching the right component to the available space and load requirements.
Common industries include metallurgy, cement, mining, and machine tools. These bearings appear in presses, extruders, cranes, and earthmoving machinery. Because they accommodate pure axial loads, they suit setups with limited axial space and a need for high rigidity. They also serve in gearboxes and milling spindles, where axial precision affects surface finish.
Proper selection hinges on axial load, rotational speed, and environmental factors. Mounting must ensure precise alignment between shaft and housing; misalignment shortens service life. Lubrication may be grease or oil, chosen based on speed and temperature. In contaminated environments, consider additional seals. The WS washer requires the correct fit to prevent slipping.
NTN cylindrical roller thrust bearings interchange with other brands that adhere to the same dimension standard. When replacing, verify shaft diameter, outer diameter, and height. The NTN series often matches similar series from other manufacturers, but always confirm compatibility. MR Industrial Accessories can help you find the right equivalent based on the original code.
To request a quote for an NTN cylindrical roller thrust bearing, send the complete code via WhatsApp or email. Our team responds promptly and can also specify the matching WS washer if needed. We offer guidance on lubrication and mounting to help you get the most from the component. Contact us with the exact model for technical information.
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 WS suffix indicate in a thrust bearing?
- The WS suffix denotes the shaft washer in cylindrical roller thrust bearings. This washer mounts on the shaft and serves as the raceway. Selecting the washer that matches the bearing number ensures proper fit.
- When should I choose a cylindrical roller thrust bearing over a ball thrust bearing?
- Cylindrical roller thrust bearings handle significantly higher axial loads than ball types but are limited to lower speeds. For heavy loads at moderate speeds, the roller bearing is suitable. For lighter loads at high speeds, a ball bearing is better.
- What lubrication is recommended for these bearings?
- Lubrication choice depends on operating speed and temperature. High-viscosity grease works for low speeds and heavy loads. For high speeds, oil with a circulation system is preferred. Always keep the lubricant clean and follow the manufacturer's guidelines for each application.