NSK 6238 ZZS deep groove ball bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
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.
How to read NSK 6238 ZZS
- 62Series
- Deep groove ball bearings, 62 series. For the same bore, each series has a different outside diameter and width.
- 38Bore
- 190 mm bore: 38 × 5.
- ZZSSuffix
- NSK suffix: it defines the variant (sealing, cage, internal clearance or other features).
6238 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The NSK 6238 ZZS bearing has a 190 mm bore, a 340 mm outside diameter and a 55 mm width (190 x 340 x 55 mm).
NSK 6238 ZZS is a reference of deep groove ball bearing, within Bearings. Request a quote for 6238 ZZS via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The deep groove ball bearing is the most widespread type: it supports moderate radial and axial loads in both directions and allows high speeds. The NSK ZZS variant incorporates two metal shields (ZZ) and a snap ring groove (S) on the outer ring, which simplifies axial mounting in housings and supports. It is used in electric motors, pumps, fans and gearboxes. At MR Accesorios Industriales we quote it via WhatsApp with the full part number.
The designation of these bearings combines the series number with the ZZS suffixes. In examples 6034 ZZS, 6036 ZZS, 6038 ZZS, 6040 ZZS and 6044 ZZS, the first digit (6) identifies the deep groove series; the second (0) indicates the dimension series; and the last two are the size code. In 6228 ZZS, 6230 ZZS and 6232 ZZS, the 62 corresponds to the medium section series. The ZZS suffix means double metal shield (ZZ) and snap ring groove (S).
These bearings are used in electric motors, centrifugal pumps, industrial fans, gearboxes and machine tools. In Argentina they are common in food plants, petrochemical plants, cement plants and the metalworking sector. The S groove allows the outer ring to be secured with a snap ring in the housing, which reduces machining and facilitates mounting in equipment where axial location is required without side covers.
To select correctly, take into account the radial and axial load, the rotation speed and the environment. ZZ shields retain grease and block dust and particles, but they are not liquid-tight; if there is water or steam, contact seals should be evaluated. Internal clearance and lubrication must be suitable for the working temperature. Proper alignment of shaft and housing is essential to avoid parasitic loads and extend service life.
Deep groove ball bearings are interchangeable between manufacturers if the main dimensions and the type of protection match. When replacing an NSK ZZS with another brand, verify that the size code and suffixes are equivalent; if in doubt, the original code is the safest reference. MR Accesorios Industriales sells NSK and other brands, and can indicate the compatible alternative.
If you need an NSK deep groove ball bearing with double shield and groove, write to us via WhatsApp with the full part number (for example, 6034 ZZS) and we will quote it promptly. MR Accesorios Industriales also manufactures split plummer block housings, ANSI chains and pulleys, and supplies power transmission, seals and lubricants for your equipment.
Dimensions
Boundary dimensions of the basic designation 6238 per ISO 15: 190 x 340 x 55 mm (d x D x B).
- Bore
- 190 mm
- Outside diameter (D)
- 340mm
- Width (B)
- 55mm
Same size in SKF and other brands
Pages from other brands with the basic designation 6238: 190 x 340 x 55 mm (d x D x B) per ISO 15.
They share the boundary dimensions set by ISO 15, not the technical data: seals or shields, internal clearance, cage and load rating can differ by brand and suffix. We quote each one by its full part number.
Frequently Asked Questions
- What are the dimensions of the NSK 6238 ZZS bearing?
- The NSK 6238 ZZS bearing has a 190 mm bore, a 340 mm outside diameter and a 55 mm width (190 x 340 x 55 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 6238.
- What does the ZZS suffix mean on an NSK bearing?
- ZZ indicates double metal shield, which retains grease and blocks particles. The final S indicates a snap ring groove on the outer ring, which allows the bearing to be fixed axially in the housing with a retaining ring.
- Where are 60 and 62 series deep groove ball bearings used?
- They are used in electric motors, pumps, fans, gearboxes and machine tools. The 60 series has a lighter section and the 62 series a medium section; both support moderate radial and axial loads at high speeds.
- How do I request a quote for an NSK ZZS bearing?
- Write to us via WhatsApp with the full part number, for example 6034 ZZS or 6228 ZZS. We will quote you promptly and, if you need several units, indicate the quantities so we can prepare the response.