
NSK FWF-283620 needle roller cage
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Needle roller cages and components
- Series
- FWF
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Description
NSK FWF-283620 belongs to needle roller cage, 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 FWF-283620 and any equivalents.
Needle cages in the NSK FWF series hold and steer the needle rollers inside a bearing or linear arrangement. The window-type construction keeps the rollers separated in a slim envelope, which helps when space around the shaft is limited. Equipment such as gearboxes, machine tools and other industrial drives that see heavy radial forces commonly uses this style of cage.
Reading an FWF code is mostly a matter of splitting the letters from the digits that follow. Those digits are tied to the bore, outside diameter and width of the cage, and each individual code maps to one size. Because the series covers many sizes, two codes that look similar can differ in dimension, so the exact reference from your drawing or old part is what should drive the selection.
Typical installations include agricultural and road-building machinery, automotive production, pumps, compressors, gearboxes and transmission assemblies, plus general production line upkeep. The appeal is the combination of a thin cross section with the ability to carry substantial radial load. Performance in those duties depends on two basics being right: the cage runs aligned, and it receives adequate lubrication.
When specifying, look at how the assembly is sealed, what internal clearance is required and how lubricant reaches the rollers. Fitting calls for care, with the shaft and housing lined up so the cage is not loaded unevenly, which would shorten its working life. Grease or oil applied correctly, and operation kept inside the temperature and speed range suited to the cage material, both matter.
Interchange between brands is not automatic. Cages from different makers can vary in dimensions and tolerances even where a standard covers part of the measurement range, so it pays to confirm fit against the existing bearing or the application itself. MR Industrial Accessories can review your NSK FWF reference and, where a direct match is not what you need, point you to a compatible option.
To get a quote, send the code or the measurements you are working from by WhatsApp or email. The team answers quickly and will suggest an equivalent when that is the better route. That applies to customers throughout the United States and in several Latin American countries.
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
- Where are NSK FWF series needle cages used?
- They appear in needle roller bearing arrangements in agricultural and automotive machinery, pumps, compressors and industrial equipment, where radial loads are high and the space available is small.
- How do I pick the right FWF cage?
- Start with the exact code, or with the bore, outside diameter and width. With that information the MR team can match the correct NSK reference to your application.
- What should I watch during installation?
- Alignment and lubrication are the two priorities. Keep the cage free of impact damage and confirm the internal clearance, which helps the bearing reach a normal service life.

