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Deep groove ball bearing NSK R 168 BZZ
- Manufacturer Part Number
- R 168 BZZ
- Brand
- NSKBrand we market
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
- Series
- Inch Series
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Description
NSK R 168 BZZ is a deep groove ball bearing reference, within Bearings. Request a quote for R 168 BZZ via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The NSK Inch Series deep groove ball bearing is a single-row bearing with inch measurements, intended for shafts where the geometry does not follow the metric system. It is used in imported equipment, machine tools, pumps and transmissions that require this standard. It withstands moderate radial and axial loads in both directions and handles high speeds. MR Accesorios Industriales sells it in Buenos Aires, Argentina, and quotes it on WhatsApp with the exact part number.
The designation of this series is read in blocks. The letter R identifies NSK's Inch series, with inch dimensions. The number that follows, as in R 168 BZZ, is the size code within that series. The suffixes indicate variants: B corresponds to a design with angular contact or brass cage depending on the case, and ZZ indicates two sheet metal shields that protect against dust and splashes. Thus, R 168 BZZ is an Inch bearing with double shield. Send the full part number on WhatsApp and we will quote it.
These bearings appear in equipment imported from the United States or the United Kingdom, where shafts come in inches. They are found in machine tool spindles, centrifugal pumps, gearboxes, industrial fans and conveyors. In Argentina, they are used by food, textile, metalworking and water treatment plants that maintain machinery with inch measurements. Also in workshops that repair old or Anglo-Saxon origin equipment. If the shaft is in inches, this series avoids adaptations and maintains the original fit.
To choose well, look at the bore, outer diameter and width in inches, and the seal type. The ZZ variant works well in environments with coarse dust or chips, but it does not replace a radial shaft seal for liquids. If there is exposure to water or oil, a contacting seal is better. The internal clearance and lubrication come defined from the factory; do not modify them without need. When mounting, align the housings well and apply the fitting load with a press or puller, never by striking the raceway. Poor alignment shortens service life.
Interchangeability between brands is handled by part number and dimensions. An NSK Inch bearing can be cross-referenced with equivalent lines from other brands that use the same inch nomenclature, but always verify the full part number and the actual measurements before replacing. It is not enough for the number to match: the seal, clearance and cage suffixes change the behavior. If you have the original part or the part number from another brand, send it on WhatsApp and we will tell you the compatible alternative.
MR Accesorios Industriales sells NSK bearings in Buenos Aires, Argentina, with more than 80 years of experience in industrial distribution. If you need the R 168 BZZ or any other reference from the Inch series, write to us on WhatsApp with the part number or the inch measurements. We will quote it promptly and advise you so that the choice is the right one.
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 ZZ suffix mean on an NSK Inch series bearing?
- ZZ indicates two sheet metal shields that cover the balls and the cage. They protect against dust and particles, but they are not liquid-tight. For environments with water or oil, a contacting seal is better.
- How do I request a quote for an R 168 BZZ bearing?
- Write to us on WhatsApp with the full part number R 168 BZZ or the inch measurements. We will quote it promptly and confirm the exact reference you need.
- Can I replace an Inch bearing with a metric one?
- It is not recommended: inch measurements do not match metric ones and the fit on the shaft or housing fails. If you have doubts, send the original part number on WhatsApp and we will tell you the correct option.

