NTN KV47×52×22.8X2S needle roller cage
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Needle roller cages and components
- Series
- K
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Description
NTN KV47×52×22.8X2S 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 KV47×52×22.8X2S and any equivalents.
The NTN KV series is a needle roller cage: it holds the needles apart and in line, and it comes without an inner or outer ring. That makes it a fit for spots where radial room is tight but the load still has to be carried. MR Industrial Accessories LLC supplies this series in standard sizes. Send the part number by WhatsApp or email and the team will quote it and suggest equivalents where they exist.
The code tells you the size. Take KV30×35×13S: KV marks the series, then bore 30 mm, outside diameter 35 mm and width 13 mm. The trailing S points to a cage variant. Some references carry an X with a number instead, such as KV7×10×12.8X3S, which flags a specific configuration. Read the three dimensions off the designation and you can match the reference in the catalog.
Where do these cages go? Machine tools, pumps, compressors, electric motors and transmission equipment, whenever radial space is the limiting factor. With no rings in the assembly, the design can be more compact and lighter. They suit arrangements that need high rigidity at moderate speed, with the shaft and housing already hardened and ground.
Selection comes down to three figures: shaft diameter, housing diameter and the width you have to work with. Alignment at mounting has to be precise, otherwise wear starts early. Lubrication, oil or grease, carries heat away and keeps the cage in service. Check that the raceways are hard enough and smooth enough. A poor fit during assembly shows up as noise and early failure.
NTN KV series cages can be swapped for equivalent parts from other makers that use the same standard dimensions. Working from an unmarked part, or from another brand's number? The team can help you pin down the equivalent. Tolerances and the suffix decide whether an interchange is valid, so verify the full designation before ordering. Send your application details and you will get advice on the right reference.
To get a quote on an NTN KV series needle roller cage, send the part number or the dimensions by WhatsApp or email. MR Industrial Accessories LLC quotes the exact reference and points out a compatible alternative when one applies, and the team replies promptly.
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 S suffix mean on a KV cage?
- It marks a construction variant of the cage, usually tied to material or surface treatment. The full designation has to be checked to confirm how it applies. Send it over by WhatsApp and the team will advise.
- How do I pick the right KV cage size?
- You need the shaft diameter, the housing diameter and the width available. Those three dimensions, in millimeters, are written into the designation. If you are unsure, send your equipment data and the matching reference will be identified.
- Does a KV cage need maintenance?
- It needs correct lubrication and periodic checks of clearance and alignment. Poor mounting or a dry running condition speeds up wear. For a specific application, ask the team about the lubricant and mounting practice to follow.