
NTN HMK1520CV6 needle roller bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Needle roller bearing
- Series
- HMK
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Description
NTN HMK1520CV6 belongs to needle roller bearing, 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 HMK1520CV6 and any equivalents.
The NTN HMK series is a radial needle roller bearing built with a stamped outer ring and a steel cage. It fits applications where the radial envelope is tight but the bearing still has to carry high radial loads, which is why it shows up in transmissions, pumps, compressors and agricultural equipment. MR Industrial Accessories LLC supplies this series to maintenance and purchasing teams in the United States and Latin America.
Reading an HMK part number is straightforward once you know the pattern. HMK is the series code for a needle roller bearing with a stamped outer ring. The four digits that follow carry the main dimensions: the first pair is the bore diameter and the second pair is the total width, both in millimeters. Any CV suffix and trailing number point to a design variant, such as a different cage or internal clearance, following the manufacturer's coding.
Typical installations include transmission cases, water and oil pumps, compressors, electric motors, farm machinery, construction equipment and lifting systems. In the automotive field they appear in manual transmissions and differentials. Metallurgical, paper and food processing plants also use them where precision and resistance matter. Because the cross section is small, the housing can be kept compact without giving up radial capacity.
Selection comes down to radial load, speed and operating environment. The shaft needs suitable surface hardness and a tolerance that gives the right fit, usually a light interference. Grease or oil both work as lubricants, depending on speed and temperature. Shaft-to-housing alignment should be checked to prevent unwanted axial loading, and the seal arrangement has to keep particles out, since the needles are sensitive to contamination.
For cross-referencing, other brands using the same dimensional nomenclature can serve as replacements. Cage style, internal clearance and tolerances are not always identical between makers, so confirm the full part number and specifications before swapping. Send the part number or the measurements you need by WhatsApp or email and MR Industrial Accessories LLC will quote it and help you find a compatible alternative for your application.
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
- How do I read an NTN HMK part number?
- HMK means a needle roller bearing with a stamped outer ring. The first two digits after the letters give the bore diameter in millimeters, the next two give the total width. A CV suffix and final number indicate variants such as cage type or internal clearance.
- What applications suit HMK series needle roller bearings?
- They work in transmissions, pumps, compressors, electric motors, agricultural machinery and other equipment where radial space is limited and high loads are present. The compact section helps keep housings small while maintaining radial capacity.
- What should I check before choosing an HMK bearing?
- Review radial load, speed, temperature and the surrounding environment. Confirm shaft and housing diameters, plan for correct lubrication and alignment, and protect the assembly from contaminants. For the exact variant, send the part number or measurements to our team.

