
SKF 81140 M cylindrical roller thrust bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller thrust bearings
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Description
SKF 81140 M 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 81140 M and any equivalents.
SKF cylindrical roller thrust bearings handle very high axial loads in one direction. A shaft washer, a housing washer and a caged set of cylindrical rollers make up the assembly, which suits applications where axial load dominates and high capacity plus rigidity are needed, such as gearboxes, machine tools and lifting equipment.
The part number tells you a lot. Take 81136 M: the leading digits identify the cylindrical roller thrust bearing type, the number that follows sets the size, and the M suffix means a machined brass cage, which brings strength and works well at high speeds. The same pattern applies to 81230 M, where the central number fixes the main dimensions and the final letter covers construction details. Reading the designation this way lets you confirm the basics quickly.
You will find these bearings in steel, cement, mining and machine tool operations. They appear in gear reducers, rotary tables, cranes and material handling equipment, and also in large pumps and rolling mill spindles. Because they take unidirectional axial loads, they fit where axial space is tight and rigidity matters.
Selection comes down to axial load, rotation speed and the operating environment. During mounting, align the washers correctly and place the roller and cage assembly between them. Grease or oil lubrication supports service life, so check axial clearance and avoid misalignment that would add load. Careful mounting protects performance.
SKF cylindrical roller thrust bearings can be interchanged with other brands that use the same dimensional designation, but tolerances and load capacities may differ. Verify the technical specifications and speak with a specialist before replacing a bearing. MR Industrial Accessories supplies the SKF brand and can advise on the right option for your application.
If you need an SKF cylindrical roller thrust bearing, send the complete part number by WhatsApp or email. We help you identify it and can suggest equivalents or assist with selection and mounting.
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 M suffix mean in an SKF cylindrical roller thrust bearing?
- It indicates a machined brass cage. This cage type offers greater strength and suits high-speed, high-load applications, influencing performance and durability.
- Where are cylindrical roller thrust bearings used?
- In applications with high axial loads, such as gear reducers, machine tools, cranes, large pumps and steel industry equipment, where high load capacity and rigidity are needed in reduced spaces.
- How is a cylindrical roller thrust bearing mounted?
- Align the shaft and housing washers correctly and place the roller and cage assembly between them. Lubricate properly, verify axial clearance and avoid misalignment to prevent additional loads.

