NTN BK0910CT needle roller bearing

NTN BK0910CT 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 BK0910CT and any equivalents.

The NTN BK series is a drawn cup needle roller bearing that runs directly on the shaft, with no inner ring and a steel cage. Its low radial section keeps the mounting height small while still supporting high radial loads. It suits positions where axial movement is limited and space is tight.

Reading a BK part number is straightforward. The letters BK identify a needle roller bearing with a stamped outer cup and no inner ring. The four digits that follow give the bore in millimeters first, then the overall width. So BK0709CT has a 7 mm bore and a 9 mm width, while BK2020CT has a 20 mm bore and a 20 mm width. The CT suffix points to a stamped steel cage plus a special surface treatment that helps with wear and friction.

You will find these bearings in machine tool drives, pumps, compressors, electric motors, packaging equipment, textile machinery and agricultural machinery. Because they handle radial loads in a small envelope, they are common in gearboxes, pulleys, rollers and cam mechanisms. Automotive gearboxes and steering systems also use them.

When choosing a BK bearing, look at the radial load, the rotation speed and the operating environment. Since there is no inner ring, the shaft itself acts as the raceway, so its hardness and roughness matter. Use the right mounting tools to avoid damaging the cage and needles. Grease or oil both work for lubrication, but the choice depends on temperature and speed. Shaft-to-housing alignment is critical.

For interchangeability, NTN BK series bearings can be swapped with other brands that use the same dimensional nomenclature, such as SKF, FAG, NSK or INA, provided bore, outer diameter and width match. Tolerances and cage type can differ between makers, so it pays to confirm those details. For an exact match, share the complete original part number with a specialist.

To request a quote for an NTN BK series needle roller bearing, send the part number or the dimensions you need on WhatsApp. We can also suggest a compatible alternative if you give us the part number from another brand.