SKF 6306-2RZTN9/HC5C3WT deep groove ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
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Other brands for this category
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Decoding SKF 6306-2RZTN9/HC5C3WT
- 63Series
- Deep groove ball bearings, 63 series. Series differ in outside diameter and width even when the bore is the same.
- 06Bore
- Bore 30 mm (06 × 5).
- 2RZTN9/HC5C3WTSuffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
6306 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 6306-2RZTN9/HC5C3WT measures 30 mm across the bore and 72 mm across the outside diameter; its width is 19 mm (30 x 72 x 19 mm).
SKF 6306-2RZTN9/HC5C3WT belongs to deep groove ball 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 6306-2RZTN9/HC5C3WT and any equivalents.
For radial and axial load support in rotating equipment, SKF deep groove ball bearings are a common choice. They handle high speeds well and suit many industrial setups. MR Industrial Accessories supplies the SKF line and can help you select the right bearing for your application.
The part number tells you a lot about the bearing. Take 6006-2RZTN9/HC5C3WT. The first four digits, 6006, give the size and series: 60 is extra-light, 62 is medium, and 63 is heavy. After that, 2RZ means low-friction seals on both sides. TN9 is a polyamide cage. HC5 indicates ceramic balls. C3 is radial internal clearance above normal. WT is a heat treatment for high temperatures. Reading these codes helps you match the bearing to your needs.
You will find these bearings in electric motors, pumps, fans, compressors, machine tools, and transmission equipment. They are also common in automotive, food, textile, and agricultural industries. The sealed design and polyamide cage cut down on noise and vibration, which can extend equipment life. Low maintenance and high-speed capability make them suitable for demanding environments.
When choosing a bearing, look at load, speed, and operating conditions. The 2RZ seal keeps contaminants out and lubricant in, which is useful in dusty or humid places. C3 clearance works when the inner and outer rings see different temperatures. HC5 ceramic balls resist wear and reduce friction losses. During mounting, make sure alignment is correct and avoid impacts that could damage rings or balls. Proper lubrication and fitting are essential for best performance.
SKF bearings can often be interchanged with equivalent designs from other brands, such as FAG, NSK, or NTN, if dimensions and specifications match. Always check tolerances and radial clearance, since these can differ between manufacturers. For a safe swap, use equivalence tables or ask our technical team.
To get a quote, send the complete bearing code via WhatsApp or email to MR Industrial Accessories. Our team will help you confirm the right option for your equipment.
More SKF versions in the 6306 series
SKF lists these 6306 series versions in its catalogs, but they don't have a page on this site. Send us the part number of any of them and we'll find it and quote it.
- SKF 6306 ETN9
- SKF 6306 N
Dimensions
30 x 72 x 19 mm (d x D x B): boundary dimensions for basic designation 6306, according to ISO 15.
- Bore
- 30mm
- Outside diameter (D)
- 72mm
- Width (B)
- 19mm
Same size, other brands
Other brands' pages with basic designation 6306: 30 x 72 x 19 mm (d x D x B) per ISO 15.
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- SKF 6306-2RZTN9/HC5C3WT bearing: what are its dimensions?
- SKF 6306-2RZTN9/HC5C3WT measures 30 mm across the bore and 72 mm across the outside diameter; its width is 19 mm (30 x 72 x 19 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 6306.
- What does the suffix 2RZTN9/HC5C3WT mean?
- 2RZ stands for low-friction seals on both sides, TN9 for a polyamide cage, HC5 for ceramic balls, C3 for greater radial clearance, and WT for high-temperature heat treatment. Each part indicates a specific technical feature.
- Are these bearings suitable for high speeds?
- Yes. The ceramic balls and polyamide cage reduce friction, allowing high-speed operation. The 2RZ seals keep lubricant in and contaminants out, which supports smooth running.
- How can I tell if a bearing from another brand is equivalent?
- Compare dimensions, radial clearance, sealing type, and load capacity. Designations can differ, so use equivalence tables or contact our team to verify.