40 mm bore bicycle headset bearing 2RS ACB4052H8 40x52x8 45/45 angle bearing

40 mm bore bicycle headset bearing 2RS ACB4052H8 40x52x8 45/45 angle bearing

Bearing steel material-based, high-grade stainless steel, or hybrid ceramic ball bearings, and some also use titanium Process. The basic use of low-end headset ball cage structure, do not use bearings.

27.15 x 38 x 6.5mm   45°/45°          30.15 x 41 x 7 mm    45°/45°         
30.15 x 41 x 6.5mm 45°/45°            30.15 x 41 x 6.5mm 36°/45°      

30.15 x 39 x 6.5mm 45/45°              30.15 x 41.8 x 6.5 mm 45/45°      

30.15 x 41.8 x 7 mm 45/45°             30.5 x 41.8 x 8 mm 45/45°               

30.5 x 41.8 x 8 mm 45/45°               33.5 x 43.8 x 7 mm 30/45°           
34.1 x 46.8 x 7mm 45/45°                34.1 x 46.9 x 7mm 45/45°                

37 x 49 x 7 mm 45/45°                     39.7 x 50.8 x 7mm 90/90° 
40x 51.8 x8 mm 36/45°                    40 x 52 x7 mm 45/45°        

40 x 52 x 8mm 45/45°   40 x 52 x 12mm 45/45°   40 x 52 x 6.5 mm 36/45°