NSK FWF-404517A needle roller cage
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Needle roller cages and components
- Series
- FWF
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
NSK FWF-404517A 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-404517A and any equivalents.
The NSK FWF series needle cage is a component used in needle roller bearings. It keeps the rollers separated and aligned so they are correctly distributed. It is chosen for arrangements where radial space is tight and the bearing must handle radial loads. MR Industrial Accessories LLC supplies this series to customers in the United States and several Latin American countries, and can help you match the right reference to your equipment.
Reading the FWF code helps narrow down the options. Take FWF-152121A: the digits are tied to the bore, outer diameter and width, and the final A marks a design or tolerance variant. Each code carries its own measurements, so the complete designation is what you compare against the bearing you are repairing. Note the full code from the old cage or from the bearing before you look for a replacement.
These cages appear in automotive, machine tool, transmission and agricultural equipment. They are common in gearboxes, pumps, compressors and roller systems where the available radial space is limited. The compact profile lets the bearing work in spots where a wider bearing would not fit, while still carrying radial load.
When selecting a cage, check the shaft diameter, the outer diameter and the width of the bearing. The cage has to match the rollers and the raceway. During assembly, confirm alignment and avoid impacts that could deform the rollers. Correct lubrication and sealing help the assembly last. If the cage is damaged, replace it together with the rollers so the set works evenly.
Cages from other brands that follow the same dimensional designation may interchange with NSK FWF series parts, but verify the exact measurements first. Similar codes do not always mean the same fit. If you are unsure, send us the original code or the bearing dimensions and we will point you to the compatible alternative or quote the exact part.
To request a quote for an NSK FWF series needle cage, message us on WhatsApp or email with the complete code or the bearing measurements. The team replies promptly and can suggest equivalents or help you choose. Ask about any reference in the FWF series.
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
- How do I identify the needle cage I need?
- Use the complete code from the cage or the bearing. If it is not visible, measure the bore, outer diameter and width with a caliper. With those figures we can quote the exact reference.
- Are NSK FWF series cages compatible with other brands?
- They may interchange when dimensions and design match. Do not rely on the code alone; check the measurements. Send us the code from another brand and we will tell you the equivalent.
- What should I watch for when mounting a needle cage?
- Avoid impacts and deformation, keep the parts aligned and lubricate as specified. The cage should seat without forcing. If it is damaged, replace it together with the rollers.