A real bargain for you: This one is strong and sturdy. Manganese raceway and Dust proof ring are not something you'll see everyday. This one will last very long at minimum maintenance effort. The wheel is soft and protected by 2 covers.
These casters are designed for heavy industrial applications where operational dependability is a must. Swivel caster models are machined from drop forged steel. With cast-iron wheel, the casters can be used in high temperature working condition.