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NSK needle roller thrust bearings and washers · NSK TRA-1220
Needle roller thrust bearing NSK TRA-1220

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Needle roller thrust bearing NSK TRA-1220

Manufacturer Part Number
TRA-1220
Brand
NSKBrand we market
Category
Bearings
Subcategory
Needle roller cages and components
Series
TRA

NSK

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Description

NSK TRA-1220 is a needle roller thrust bearing reference, within Bearings. Request a quote for TRA-1220 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The NSK TRA series needle roller thrust bearing is a compact assembly component designed to support axial loads in tight spaces. It consists of a cage with needles that is mounted between two raceways, usually washers or machined races. It is used in mechanisms where the available diameter and height are limited and high axial capacity is required. MR Accesorios Industriales sells this series in Buenos Aires, Argentina, and quotes it by WhatsApp with the exact part number.

The TRA series designation is read as a numeric code that identifies the size of the assembly. For example, TRA-411, TRA-512 or TRA-613 correspond to different diameters and capacities within the same family. The number that follows the letters TRA does not indicate the diameter directly, but rather an internal reference of the series that is looked up in a table. To choose the correct part number, send us the housing dimensions or the full part number shown on the part.

These needle roller thrust bearings are used in applications where there is little space and axial loads are moderate or high. They appear in gearboxes, pumps, compressors, machine tools and lifting equipment. In Argentine industry they are found in the maintenance of gear reducers, spindles and slewing mechanisms. Also in agricultural and road equipment where robustness and small size are key.

To select a needle roller thrust bearing, take into account the shaft diameter, the housing outside diameter and the available height. The needle cage needs ground raceways with adequate hardness; if you do not have them, support washers can be added. Lubrication must be plentiful and the mounting must guarantee alignment between the raceways. Poor support causes premature wear and noise.

Needle roller thrust bearings of the TRA series can be interchanged with equivalent products from other brands, as long as the mounting dimensions and load capacity match. There is no universal nomenclature: each manufacturer uses its own part numbers. If you bring an unidentified part or the part number of another brand, at MR Accesorios Industriales we will tell you the compatible alternative.

If you need a needle roller thrust bearing of the TRA series, write to us by WhatsApp with the part number or the dimensions. At MR Accesorios Industriales we will quote you shortly and advise you so that the mounting is correct. We also work with cages, needles and associated components to complete your repair.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.

Dimensions

Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.

Frequently Asked Questions

What does the TRA designation mean in NSK needle roller thrust bearings?
TRA is the abbreviation NSK uses to identify its series of needle roller thrust bearings. The number that follows, such as 411 or 512, corresponds to a specific size within the family. To find out what dimensions each part number corresponds to, ask us by WhatsApp.
How do I choose the right needle roller thrust bearing for my application?
You need to know the shaft diameter, the housing diameter and the available height. The axial load and the lubrication conditions also matter. With that data we will tell you the corresponding TRA part number or the compatible alternative.
What care does the mounting of a needle roller thrust bearing require?
The raceways must be ground, hardened and well aligned. Lubrication must be sufficient and the mounting must avoid eccentric loads. If the raceways do not meet these conditions, support washers can be used. Correct mounting extends service life.
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