NTN K20×24×13SV4 needle roller cage
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Needle roller cages and components
- Series
- K‥S
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Description
NTN K20×24×13SV4 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 K20×24×13SV4 and any equivalents.
The NTN K series needle roller cage holds and guides the needles in a bearing arrangement that has no inner or outer ring. It suits assemblies where radial room is tight and the application calls for high load capacity. MR Industrial Accessories supplies this series in standard dimensions and quotes by part number through WhatsApp or email.
A K number describes the envelope in which the cage works. Take K20×24×13SV4: the bore is 20 mm, the outside diameter 24 mm and the width 13 mm. The SV code marks a steel cage with surface treatment, and the trailing digit separates design or tolerance variants. K25×30×20SV3 follows the same pattern with a 25 mm bore, 30 mm outside diameter and 20 mm width. Those three measurements control interchangeability with the shaft and housing.
Typical installations include machine tools, pumps, compressors, electric motors, transmission equipment and agricultural machinery. Maintenance teams also fit them when rebuilding gearboxes or linear guide systems where every millimeter counts. Because the cage carries no rings, the raceways are either ground directly on the shaft and housing or provided by separate rings.
Selection starts with the raceway surfaces. Hardness, finish, radial clearance and shaft-to-housing alignment all affect how the needles roll and how the load is distributed. Lubrication must be clean and sufficient; in dirty settings, external seals are worth reviewing. During mounting, use tools that will not distort the cage. The SV treatment already adds surface protection for tougher conditions.
Cages in this style appear under various designations from different manufacturers, yet standard dimensions allow equivalents to be found. If you only have another brand's number or an unidentified part, send the bore, outside diameter and width, or the number itself, and we will point you to a compatible option. Matching those dimensions, along with the cage type and treatment, is what makes the substitution work.
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 SV code indicate on a K cage?
- SV denotes a steel cage with surface treatment. That treatment helps with wear and corrosion in demanding service. The digit after it identifies a design or tolerance variant within the series.
- Are inner and outer rings part of the K cage?
- No. The K cage only separates and guides the needles. Raceways are machined on the shaft and in the housing, or separate rings are used. Hardness, roughness and alignment of those surfaces are therefore critical.
- How do I request a cage that is not listed?
- Contact us on WhatsApp with the part number or with the bore, outside diameter and width. We will quote the NTN K series cage you need or suggest a compatible alternative if you provide another brand's number.