The NTN UK209D1 is a high-quality ball bearing insert featuring a 45mm tapered bore, designed for secure mounting with an adapter sleeve. Its spherical outer ring allows for compensation of initial misalignment, ensuring smooth operation and extended service life. This durable steel bearing insert has an 85mm outer diameter, an inner ring width of 49.2mm, and an outer ring width of 28mm, making it suitable for various industrial and agricultural machinery applications.