SKF RPNA 30/47 needle roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Needle roller bearing
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Description
SKF RPNA 30/47 belongs to needle roller 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 RPNA 30/47 and any equivalents.
SKF RPNA series needle roller bearings are built with machined inner and outer rings to carry high radial loads where radial and axial room is minimal. Their thin cross-section suits compact assemblies. MR Industrial Accessories LLC supplies this series as part of its SKF bearing range and assists customers across the United States and Latin America with selection and equivalents.
Reading the RPNA code is straightforward. The letters RPNA denote a non-separable needle roller bearing with machined inner and outer rings. The two numbers after the letters give bore and outside diameter in millimeters, separated by a slash. In RPNA 15/28, for instance, the bore is 15 mm and the outside diameter 28 mm; the same logic applies to RPNA 20/35 and RPNA 30/47.
These bearings fit machine tools, power transmission equipment, pumps, compressors, electric motors and roller systems on production lines. Their ability to take radial loads in confined spaces makes them a common choice in gearboxes, pulleys and lifting mechanisms. Food, textile, automotive and metallurgical operations use them to keep motion smooth and service life long.
When selecting an RPNA bearing, confirm shaft and housing dimensions first, then review load and speed conditions. Lubrication with grease or oil should be adequate, and shaft-to-housing alignment must be precise to prevent unwanted axial loads. Sealing depends on the environment; in contaminated areas, choose bearings with additional seals or shields. Use proper tools during mounting to avoid damaging the needle edges.
For equivalents, SKF RPNA series bearings can be interchanged with products from other brands that share the same dimensional designation, such as INA or NSK, provided tolerances and load capacities are checked. Always compare each manufacturer's technical data to confirm compatibility. MR Industrial Accessories LLC can help you evaluate the best option for your application.
To get a quote for an SKF RPNA series needle roller bearing, send the exact code via WhatsApp or email. The team responds promptly and can suggest equivalents or help you choose the right bearing for your equipment.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the RPNA designation mean in a needle roller bearing?
- RPNA identifies a needle roller bearing with machined inner and outer rings. The numbers after the letters, separated by a slash, indicate bore diameter and outside diameter in millimeters. For example, RPNA 15/28 has a 15 mm bore and a 28 mm outside diameter.
- Where are RPNA series needle roller bearings used?
- They suit applications with limited radial space and high radial loads, such as machine tools, pumps, compressors, electric motors and gearboxes. They are common in the food, textile, automotive and metallurgical industries.
- How is an RPNA needle roller bearing mounted?
- Mounting requires cleanliness, precise alignment and adequate lubrication. Use tools that do not damage the needles, and verify that shaft and housing tolerances are correct. In contaminated environments, sealed versions are recommended.