

NSK MR 148 ZZ deep groove ball bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
- Series
- MR
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
NSK MR 148 ZZ is a reference of deep groove ball bearing, within Bearings. Request a quote for MR 148 ZZ via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The MR ZZ series deep groove ball bearing is a precision component designed to support radial and axial loads in both directions. Its compact design and ability to operate at high speeds make it ideal for a wide variety of industrial applications. With double steel shield seals, it offers protection against contaminants and lubricant retention, extending bearing service life in demanding environments.
The MR ZZ series designation is interpreted as follows: the letters MR identify the medium-section deep groove ball bearing series, while the ZZ suffix indicates that the bearing incorporates two steel shield seals (metal shielded) on both sides. The numbers that accompany the letters, as in MR 62 ZZ, MR 63 ZZ or MR 72 ZZ, correspond to the size and load capacity of the bearing. This nomenclature allows you to quickly select the right bearing according to the required dimensions.
These bearings are used in a wide range of industrial applications in Argentina, such as electric motors, pumps, fans, compressors, conveyor belts and agricultural machinery. Their ability to support radial and axial loads makes them versatile for equipment operating at moderate and high speeds. In the automotive sector, they are used in alternators, tensioner pulleys and rollers. They are also common in power transmission equipment and in applications requiring smooth, quiet operation.
To select the right bearing, take into account the radial and axial load it must support, the rotation speed and the environmental conditions. The ZZ seal protects against dust and moisture, but if there is exposure to liquids, consider a rubber seal (2RS). Internal clearance and lubrication are critical: verify that the bearing comes pre-lubricated from the factory. During mounting, ensure correct alignment and avoid impacts that could damage the raceways. Use suitable tools for mounting and dismounting.
Regarding equivalences, NSK MR ZZ series deep groove ball bearings can be interchanged with bearings from other brands that follow the same dimensional nomenclature, such as SKF, FAG or NTN, as long as the dimensions and seal type match. It is important to verify tolerances and internal clearance to ensure compatibility. If you have doubts, contact us with the original part number and we will indicate the compatible alternative.
To request a quote for the bearing you need, send the complete part number via WhatsApp to MR Accesorios Industriales. We quote the part number or the exact size you specify. At MR Accesorios Industriales we provide technical advice so you can choose the right bearing for your application.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm the dimensions and version against the manufacturer's data sheet.
Frequently Asked Questions
- What does the ZZ suffix mean in MR bearings?
- The ZZ suffix indicates that the bearing has two steel shield seals (metal shielded) on both sides, which protect against contaminants and retain lubricant.
- How do I choose between a bearing with ZZ seal and one with 2RS seal?
- The ZZ seal is suitable for dry and dusty environments, while the 2RS (rubber) offers better protection against liquids and moisture. Choose according to your equipment's conditions.
- Can I replace a bearing from another brand with one from the MR ZZ series?
- Yes, if the dimensions and seal type match. Send us the original part number and we will indicate the equivalent compatible with your equipment.
