NTN 89311 cylindrical roller thrust bearing

NTN 89311 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 89311 and any equivalents.

When an application pushes a heavy axial load in a single direction, a cylindrical roller thrust bearing is often the answer. NTN produces these bearings in a range of sizes, and MR Industrial Accessories LLC supplies them to maintenance and purchasing teams in the United States and several Latin American countries. Because the rolling elements are cylindrical rather than spherical, contact between roller and washer is linear, which suits arrangements that must carry thrust and stay rigid in the axial direction. Typical homes for this type of bearing include machine tools, gearboxes and lifting equipment, where precision and durability matter.

The part number tells you most of what you need. NTN groups these bearings into numeric series such as 811, 812 and 893, and the digits that follow describe the bore, outside diameter and height of the assembly. Two bearings from different series may share a bore but differ in width and load capability, so the full designation matters. The safest approach is to read the number engraved on the bearing itself or take it from the machine drawing before requesting a replacement.

Sectors that lean on this bearing type include metalworking, mining, cement and food processing, where thrust loads dominate and radial loads are secondary. Presses, extruders, cranes and material handling equipment are common examples. Machine tool spindles and rotary tables also use them, since a bearing that accepts thrust in one direction only can be arranged to give the stiffness those applications need. MR Industrial Accessories LLC supplies them both for planned replacements and for new builds, and can help match the series to the load and the space available.

Selection comes down to three inputs: how much axial load the bearing will see, how fast it will turn, and what the surrounding environment looks like. Confirm the direction of the thrust first, because these bearings work in one direction only. During mounting, the shaft washer and housing washer must sit flat and stay aligned; any misalignment shortens service life. Grease or oil must reach the contact surfaces consistently, and where dust, water or other contaminants are present, extra sealing or protection is worth reviewing. If the choice is not obvious, the MR team can walk through it with you.

Interchange is possible with other manufacturers that use the same dimensional designation, but the comparison should not stop at the bore and outside diameter. Tolerances and load ratings can differ from one maker to another, so it pays to check the technical data side by side before substituting. MR Industrial Accessories LLC can review compatibility with other brands so the equipment keeps running as intended.

To request a quote, send the part number or the dimensions stamped on your equipment through WhatsApp or email. The team replies promptly and can suggest equivalents or help you settle on the right option.