deck crane bearing needle roller bearings

 Rolling body is needle bearings, needle length to diameter ratio greater than 3, but a diameter less than or equal to 5mm; tapered roller bearings ----- rolling body is tapered roller bearings; spherical Roller bearings eleven rolling body is spherical roller bearings. (3) marine crane bearing‍ whether the bearing aligning their work is divided into: 1) deck crane bearings ----- raceway is spherical shape, able to adapt to angular deviation and angular movement between the two raceways of the bearing axis ; 2) non-aligning bearing (rigid bearing) ----- able impedance path between roller bearing axis angular offset. (4) according to the number of rows of rolling elements bearings, divided into: 1) single row bearings ----- has a list high precision bearings‍ of rolling element bearings; 2) ----- double row bearings have two rows of rolling element bearings; 3) ----- multi-row bearings with more than two rolling element bearings, such as three, four bearings. (5) whether the separation bearing their part, are divided into: 1) separable bearings ----- bearings with separable components; 2) can not be separated after the final bearing ----- bearing supporting rings are freedom can not be arbitrarily separated bearings. (6) Taper roller bearings‍ bearing their structure and shape (if no filling slots, without inner and outer rings and structural shapes, ribs, and even whether the cage, etc.) can also be divided into a variety of structural types.