All Brands
Model: NACHI 21311EX1 - Cylindrical hole spherical roller bearings>
Bearing Size
d = 55D = 120
B = 29
da(min) = 65
Da(max) = 110
ra(max) = 2
Mass = 1.7
Basic load rating: 144000
Rated static load: 165000
Limit speed（Grease lubrication）: 3000
Limit speed（Oil lubrication） 4100
