
SKF 6209-2Z/C4HT deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
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Since 1945 · Martínez, Buenos Aires, Argentina
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Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
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How to read SKF 6209-2Z/C4HT
- 62Series
- Deep groove ball bearings, 62 series. For the same bore, each series has a different outside diameter and width.
- 09Bore
- 45 mm bore: 09 × 5.
- 2Z/C4HTSuffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
6209 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF 6209-2Z/C4HT bearing has a 45 mm bore, a 85 mm outside diameter and a 19 mm width (45 x 85 x 19 mm).
SKF 6209-2Z/C4HT is a reference of deep groove ball bearing, within Bearings. Request a quote for 6209-2Z/C4HT via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF Z/C HT series deep groove ball bearings are components designed to withstand radial and axial loads in applications where the operating temperature is high. Their designation combines 2Z metal shielding with C3 or C4 internal clearance and special HT thermal stabilization. They are used in electric motors, industrial fans, ovens and continuous process equipment. MR Accesorios Industriales sells this line with technical advice so you can choose the right bearing for your application.
The designation of these bearings is read in parts. The basic number, such as 6206 or 6309, indicates the dimensional series and the bearing size. The 2Z suffix indicates that it has two metal shields, one on each side, which retain the lubricant and prevent the entry of coarse particles. Then comes the internal clearance: C3 or C4, which correspond to clearances greater than normal, necessary when the fit or temperature generates expansion. Finally, HT identifies an execution with thermal stabilization for high temperatures. Thus, a 6209-2Z/C4HT is a bearing of the 62 series, with double shield and C4 clearance for hot service, according to the code.
These bearings are used in equipment where heat is part of the process. They are commonly found in electric motors for oven fans, industrial dryers, boilers, baking equipment and heat treatment lines. Also in hot water pumps, compressors and conveyors operating in high-temperature environments. In Argentina, industries such as food, chemical, ceramic and steel turn to this variant when standard bearings do not withstand the thermal regime. The combination of 2Z sealing and increased clearance helps maintain stable operation under those conditions.
To select correctly, take into account the actual working temperature and the type of load. C3 or C4 clearance compensates for the thermal expansion of the shaft and housing, preventing the bearing from ending up with negative clearance. 2Z sealing is suitable for relatively clean environments; if there is fine dust or moisture, other types of closure should be evaluated. Lubrication must be the one indicated for high temperature, and assembly requires careful alignment and adjustment according to the type of seat. Always consult the service conditions to choose the correct clearance and thermal stabilization.
As for equivalences, deep groove ball bearings with similar suffixes from other manufacturers can be interchanged if the main dimensions, internal clearance and heat treatment match. However, not all manufacturers use the same keys to identify HT stabilization or C3 and C4 clearances. Therefore, when looking for a replacement, it is essential to verify that the complete code includes the same characteristics. MR Accesorios Industriales can guide you on interchangeability, but it is always advisable to confirm with the equipment specifications.
If you need to replace a bearing of this series, send us the complete part number via WhatsApp. At MR Accesorios Industriales we advise you so you receive the correct part for your application. We support Argentine industry with products and technical support.
Dimensions
Boundary dimensions of the basic designation 6209 per ISO 15: 45 x 85 x 19 mm (d x D x B).
- Bore
- 45mm
- Outside diameter (D)
- 85mm
- Width (B)
- 19mm
The same size in other brands
Pages from other brands with the basic designation 6209: 45 x 85 x 19 mm (d x D x B) per ISO 15.
- FAG6209-C-2Z6209-C6209-C-2HRS
- KOYO6209
- NSK6209 ZZ6209
- NTN6209ZZ62096209LLB4 more →
- RKB6209
- TIMKEN62096209M
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 SKF 6209-2Z/C4HT bearing?
- The SKF 6209-2Z/C4HT bearing has a 45 mm bore, a 85 mm outside diameter and a 19 mm width (45 x 85 x 19 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation 6209.
- What does the HT suffix mean in these bearings?
- HT indicates an execution with special thermal stabilization for high temperatures. This allows the bearing to maintain its dimensions and clearance within a wider thermal range than a standard bearing. It is important to respect the maximum temperature indicated by the manufacturer to avoid permanent deformation.
- When should I choose a C3 or C4 clearance?
- C3 or C4 clearance is chosen when service conditions generate expansions that would reduce normal internal clearance. This occurs with high temperatures, strong interference fits or thermal differences between shaft and housing. A larger clearance prevents the bearing from working preloaded and extends its service life.
- Can I replace an SKF bearing with another brand?
- Yes, if the main dimensions, internal clearance and heat treatment match. Not all manufacturers use the same suffixes to identify these characteristics, so verify that the replacement code includes the same specifications. If in doubt, consult us with the original code and we'll help you find the equivalence.

