NTN NA4904RCT needle roller bearing

NTN NA4904RCT 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 NA4904RCT and any equivalents.

The NTN NA49‥R series covers needle roller bearings that use a small radial section and a high roller count to handle significant radial loads. They suit equipment where space is tight but radial rigidity matters, such as machine tools, transmission units and other industrial mechanisms.

Reading the part number helps with selection. The NA prefix means the bearing includes an inner ring. The 49 is the dimension series. The R suffix points to a design detail, such as the cage style or a surface treatment. Examples NA49/28RCT and NA4904RCT show how the code is built; the RCT ending adds further internal design information. To pick the right number, you need the shaft diameter and the housing dimensions.

Typical fields of use include metallurgy, food processing, textiles and automotive plants. You will find these bearings in pumps, compressors, gearboxes, machine tools and conveyor systems. Their compact build fits confined spaces and handles oscillating or high-frequency rotary motion.

When selecting, consider the radial load, the rotation speed and the operating environment. Mounting calls for precise alignment between shaft and housing to prevent extra stresses. Grease or oil lubrication both work; correct lubrication reduces wear and supports service life. Sealing depends on contamination levels—in dirty areas, add extra seals to protect the bearing. Follow the manufacturer's instructions for mounting and axial fixing.

For equivalents, NA49‥R series bearings can be interchanged with other brands that use the same dimensional designation, such as SKF, FAG or NSK, as long as tolerances and internal design are checked. Compare compatibility tables and confirm that critical dimensions match. MR Industrial Accessories can help you find the best option for your application.

To request a quote for an NTN NA49‥R series needle roller bearing, send the part number or the dimensions you need via WhatsApp or email. The team replies promptly and can suggest a compatible alternative if needed.