NSK TRA-916 needle roller thrust bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Needle roller cages and components
- Series
- TRA
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Description
NSK TRA-916 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 TRA-916 and any equivalents.
The NSK TRA series needle roller thrust bearing is a compact assembly that handles axial loads where radial space is tight. It uses a needle cage positioned between two raceways, typically washers or machined surfaces. This design suits mechanisms with limited diameter and height that still require high axial capacity. MR Industrial Accessories supplies this series and provides quotes by part number via WhatsApp or email, with support to find equivalents and select the right option.
The TRA prefix is followed by a numeric code that identifies the assembly size. Examples include TRA-411, TRA-512 and TRA-613, each representing a different diameter and capacity within the family. The number after TRA is not a direct diameter measurement; it is an internal series reference that must be matched in a table. To select the correct part, provide the housing dimensions or the complete part number from the existing component.
These bearings are common in gearboxes, pumps, compressors, machine tools and lifting equipment, where space is limited and axial loads are moderate to high. Maintenance teams also encounter them in gear reducers, spindles and slewing mechanisms, as well as in agricultural and road equipment that demands robustness in a small envelope.
Selection depends on shaft diameter, housing outside diameter and available height. The needle cage requires ground raceways of adequate hardness; if these are not present, support washers can be added. Lubrication must be generous, and mounting must ensure alignment between raceways. Inadequate support leads to premature wear and noise.
TRA series bearings can be interchanged with equivalent products from other manufacturers when mounting dimensions and load capacity match. Since nomenclature is not universal, each brand uses its own part numbers. If you have an unidentified part or a competitor's number, MR Industrial Accessories can identify a compatible alternative.
For a quote, send the part number or dimensions via WhatsApp or email. The team responds promptly and can advise on proper mounting. We also supply cages, needles and related components to complete your repair.
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 TRA designation mean in NSK needle roller thrust bearings?
- TRA is the series identifier for NSK needle roller thrust bearings. The following number, such as 411 or 512, indicates a specific size within the family. Contact us by WhatsApp to determine the exact dimensions for each part number.
- How do I choose the right needle roller thrust bearing for my application?
- You need the shaft diameter, housing diameter and available height, along with axial load and lubrication conditions. With that information, we can specify the corresponding TRA part number or a compatible alternative.
- What care does the mounting of a needle roller thrust bearing require?
- Raceways must be ground, hardened and well aligned. Lubrication must be sufficient, and the mounting should avoid eccentric loads. If raceways do not meet these conditions, support washers can be used. Correct mounting extends service life.