The Olympic bar uses 2 needle bearings and 1 bushing in each sleeve; The needle bearings provide the fast spin, but the bushings make the bar more durable and last longer.
VEVOR 7FT/6FT/4FT Olympic Barbell Bar, Fits 2-Inch Weight Plates, Barbell Bar with Knurled Grip for Strength Training, Weightlifting, Squat, Deadlift, Bench Press, Curl, Overhead Press, 500lbs/700lbs/1000lbs Capacity
4FT Olympic Barbell Bar 350LB EZ Curl Straight Bar 2in Plates Gym
GUQUAN Olympic EZ Curl Barbell Bar, 400LBS Weight Capacity Olympic Curl Bar, 4ft Barbell Weight Bar with Knurled Grip for 2 Inch Weight Plates, Hip Thrusts,Squat,Biceps-Home Gym Weight Bar
Olympic Barbell Bar 4FT, 350LB EZ Curl or Straight Weight Lifting Bar, Fits 2-Inch Olympic Plates, Rotating Sleeves, 2 Spring Collars, Knurled Strength Training Bar for Home Gym
Titan Fitness Performance Series Olympic 4ft EZ Curl Bar, Barbell for Bicep/Tricep Curls, Rated 200 LB, Fits Olympic Weight Plates, Durable Steel Weight Bar for Weightlifting, Strength Training
