NTN 8E-KV41×49×21.8XS needle roller cage
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Needle roller cages and components
- Series
- KV‥S
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Description
NTN 8E-KV41×49×21.8XS 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 8E-KV41×49×21.8XS and any equivalents.
An NTN KV series needle cage keeps the needles evenly spaced and properly guided inside a needle roller bearing. That arrangement supports radial loads in a very small cross section, which suits equipment where space around the shaft is tight. MR supplies this series to maintenance and purchasing teams across the United States and Latin America.
The part number itself tells you most of what you need. Take 8E-KV10×13×12.8XS: the bore is 10 mm, the outside diameter is 13 mm, and the width is 12.8 mm. The leading figure refers to the needle circle diameter, and the XS ending marks a particular construction variant of the cage.
These cages turn up in gearboxes, pumps, compressors, machine tools, transmission equipment, and agricultural machinery, as well as in automotive components. They work well in compact assemblies that call for high rigidity and low friction, including oscillating motions and high-speed rotation.
When you select a KV cage, match the bore diameter and width to the housing, then confirm the lubrication method and internal clearance. Correct alignment and clean surroundings at mounting matter, since contamination or misalignment shortens cage life. Seat the needles so they are guided properly, keep the specified clearance, and use the lubricant called for by the application so the film stays uniform.
Cages built to the same standard dimensions can be used in place of one another. If you are holding a part number from another maker, send it over and we will help you identify the equivalent. Check tolerances and cage design before installing, so the replacement behaves as expected in your equipment.
To get a quote, message us on WhatsApp or by email with the part number or the measurements. Our team responds promptly, suggests equivalents when needed, and helps you choose the right cage for the job.
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 XS suffix mean in the KV series?
- XS marks a specific construction variant within the KV series. It can point to a surface treatment, a special tolerance, or a particular cage design. Ask our technical team to confirm the exact characteristic when you request a quote.
- How do I choose the right KV needle cage for my application?
- Start with the housing dimensions, both diameter and width, then factor in the load and speed conditions. The lubrication type and required internal clearance also matter. With those details, we can guide you to the exact model.
- Are NTN KV series cages interchangeable with other brands?
- They can be, provided the dimensions and tolerances follow the same international standards. If you have a part number from another manufacturer, we can help you find the equivalent. Always verify the technical specifications to ensure correct mounting and performance.