Product page
Needle roller cage NTN K3×6×7T2T
- Manufacturer Part Number
- K3×6×7T2T
- Brand
- NTNOfficial distributor
- Category
- Bearings
- Subcategory
- Needle roller cages and components
- Series
- K
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Description
NTN K3×6×7T2T is a needle roller cage reference, within Bearings. Request a quote for K3×6×7T2T via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The NTN K series needle cage is a precision component that guides and retains the needle rollers in bearings and power transmission applications. It is used in reduced radial spaces where high load capacity and rigidity are required. MR Accesorios Industriales sells this series in standard dimensions with technical support to select the right cage according to diameter, width and lubrication conditions.
The K series designation is read as K followed by the dimensions: bore diameter, outside diameter and width, separated by the × sign. For example, K3×6×7T2T indicates 3 mm bore diameter, 6 mm outside diameter and 7 mm width. The suffix T2T indicates a cage made of an engineering material, usually glass-fiber reinforced polyamide, suitable for moderate temperatures and oil or grease lubrication. Other suffixes may indicate material or treatment variants, but it is always best to verify the complete part number.
These cages are used in needle roller bearings, pumps, compressors, machine tools, transmission equipment and precision mechanisms. In Argentina, they are common in the automotive, metalworking, textile and food industries, where spaces are reduced and radial loads are high. They are also used in the repair of gearboxes, camshafts and joints that require low weight and high rigidity.
To select the right cage, take into account the shaft and housing diameter, the available width and the expected radial load. Lubrication must be adequate: oil or grease with a viscosity suited to the speed and temperature. Assembly requires cleanliness and precise alignment to avoid premature wear. If space allows, a cage with a greater number of needles improves load capacity, but always within the standard dimensions.
NTN K series needle cages are interchangeable with those of other manufacturers that follow the same standard dimensions, such as SKF, FAG or NSK. The key is to respect the bore, outside diameter and width, as well as the suffix type. If the customer brings the part number of another brand, at MR Accesorios Industriales we indicate the compatible equivalent and quote the NTN cage that best fits your application.
To request a quote, send us the exact part number you need by WhatsApp, for example K6×9×8T2T, or the shaft and housing dimensions. We will reply shortly with availability and the alternative that best suits your equipment. We can also advise you on assembly and lubrication to maximize the service life of the component.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the T2T suffix mean in an NTN needle cage?
- The T2T suffix indicates that the cage is made of an engineering material, generally glass-fiber reinforced polyamide. This material offers good wear resistance and allows operation at moderate temperatures with adequate lubrication.
- How do I choose the right K series needle cage for my application?
- You need to know the shaft diameter, the housing diameter and the available width. With those dimensions, you select the matching part number. Also consider the radial load and the lubrication conditions. If you have doubts, send us the data by WhatsApp and we will advise you.
- Are NTN K series needle cages interchangeable with other brands?
- Yes, as long as they follow the same standard bore, outside diameter and width dimensions. Brands such as SKF, FAG or NSK offer equivalents. If you send us the part number of another brand, we will indicate the compatible NTN reference and quote it for you.

