
NSK RSF-4830E4 cylindrical roller bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
- Series
- RSF
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Description
NSK RSF-4830E4 belongs to cylindrical 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 RSF-4830E4 and any equivalents.
NSK RSF series cylindrical roller bearings are built for equipment that sees heavy radial forces and elevated speeds. The cylindrical roller and steel cage arrangement supports accurate running in tough industrial settings. You will find them in heavy machinery, mining operations, steel plants and power transmission systems. MR Industrial Accessories quotes these bearings by exact part number or size.
Reading the RSF code helps you match the bearing to the application. RSF identifies the NSK cylindrical roller bearing series. The digits that follow give the bore diameter and dimension series. In RSF-48/500E4, 48 is the dimension series and 500 is the bore in millimeters. The E4 suffix points to a reinforced polyamide cage. With RSF-4820E4, 4820 covers the dimension series and an internal code. These designations let you pinpoint the correct bearing quickly.
Typical uses include gearboxes, rolling mills, crushers, mills and power transmission equipment in steel, cement and mining operations. The bearings tolerate high radial loads and stay rigid when vibration and moderate temperatures are present. Maintenance shops and production plants rely on them for material handling and heavy machinery.
Selection depends on the radial load, rotation speed and operating environment. Decide between open execution for external lubrication or a sealed version for dirty conditions. Proper lubrication and accurate alignment go a long way toward service life. Keep the work area clean during mounting and use the right tools so the rollers and raceways are not damaged. Always check the technical data for the specific application.
When comparing with other brands, look at bore diameter, outer diameter and width. NSK RSF cylindrical roller bearings can interchange with products from other makers that use the same dimensional standards, such as SKF, FAG or NTN, provided tolerances and internal design line up. Confirm the full part number and operating conditions before replacing. If anything is unclear, contact us and we will help you sort it out.
To request an NSK RSF series cylindrical roller bearing, send the part number or exact size through WhatsApp. MR Industrial Accessories will quote it promptly. We can also suggest a compatible alternative when you share the original part data.
Dimensions
- Bore
- 150 mm
Frequently asked questions
- What does the E4 suffix mean on NSK RSF bearings?
- E4 indicates a polyamide cage reinforced with fiberglass. This cage provides strength and supports high speeds. Check that the suffix matches your application requirements for best performance.
- How do I find the size of an RSF bearing?
- The designation contains numbers for the bore diameter and dimension series. In RSF-48/500E4, 500 is the bore in millimeters. For exact identification, use the catalog or send us the complete part number.
- Where are RSF cylindrical roller bearings commonly used?
- They appear in heavy machinery, gearboxes, rolling mills, mills, crushers and transmission equipment. They suit high radial loads and moderate to high speeds in steel, cement and mining industries.

