
NTN KV31×36×13.8XS needle roller cage
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Needle roller cages and components
- Series
- KV‥S
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Description
NTN KV31×36×13.8XS 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 KV31×36×13.8XS and any equivalents.
The NTN KV series needle cage is a precision component that holds and guides the rollers in a needle roller bearing, keeping them evenly spaced and aligned. It suits arrangements where radial space is tight and load capacity matters. MR Industrial Accessories LLC supplies this series in standard sizes for machinery maintenance and repair. Send the part number on WhatsApp or by email and our team will get back to you promptly with a quote.
Reading the code: KV identifies a single-row needle cage. The numbers after it, separated by the × sign, give the main dimensions in millimeters: bore, outside diameter and cage width. Take KV12×17×17.8XS: bore 12 mm, outside diameter 17 mm, width 17.8 mm. The XS suffix marks a design variant within the series.
Typical uses include automotive, machine tools, transmission equipment and agricultural machinery. Gearboxes, pumps, compressors and roller systems often rely on these cages where a high load-to-space ratio is needed. The design supports compact, robust assemblies.
When selecting a cage, check the shaft and housing dimensions along with the load and operating speed. Correct lubrication and alignment during mounting help avoid premature wear. The cage should fit without excessive play and with the clearance the manufacturer recommends.
NTN KV series cages interchange with other brands that follow the same standard dimensions. When replacing a cage, compare dimensions and the suffix type. If a part number from another brand does not match, we can identify the equivalent from the dimensions.
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?
- It indicates a specific design variant within the KV series, which may involve a surface treatment, special tolerance or particular cage design. For the exact characteristics of a reference with XS, ask us with the complete part number.
- How do I choose the right needle cage for my application?
- Consider the shaft and housing dimensions, the load and the operating speed. Make sure the cage dimensions match the available space. If you have doubts, send us your equipment data and we will advise you on the right reference.
- Are NTN KV series cages compatible with other brands?
- Yes, as long as the standard dimensions match. Needle cages are made to international standards, so they can be interchanged between brands when dimensions are equivalent. To replace a cage from another brand, send us the part number or the dimensions and we will quote the equivalent NTN one.

