This bearing features two sets of rings and rollers brought together at right angles – with alternate rollers facing opposite directions.
Features and Benefits
• Two rows of rollers in the space of one
• Cross section occupies little space
• Less housing material
• Machining requirements reduced
• Reduced cost
• Roller configuration gives wide effective spread
• Line contact on roller and raceway
• Maximum accuracy of rotation
• High stability
• Greater tilting stiffness
• Adjustable design for optimum preload
• Longer expected bearing life
• Maximum rigidity
• Minimum runout
• Relubrication ability – lubricant, fed between the single races, may pass out at each side of the bearing
• Allows lubricants and contaminants to be purged
• Nylon separators
• Low inertia
• Low running torque
• Case-hardened steel
• Provides tough, shock-resistant core and hard,wear-resistance surface
How to choose suitable bearings:
While it is not easy to select the optimum bearing type and combination, it is no exaggeration to say that bearing selection is essential in order to obtain the desired design performance and service life.The designer should consider giving priority to meeting the most critical requirement of the bearing.
First of all,performance, operating conditions, and environmental conditions demanded of bearings must be considered.
Study bearing arrangement and types including the following parts:
① Load direction and size;② Speed;③ Noise and torque;④ Horizontal or vertical shaft;⑤ Rigidity;⑥ Axial bearing arrangement;⑦ Installation and removal;⑧ Vibration, shock
Required Dynamic Load Rating
Calculate the required dynamic load ratings based on load,rotation speed, and desired service life.
Based on the space and load to choose bearing with suitable size.To analyze the values and determine whether standard parts can be used.If is the size within design limits? If yes,the basic static load rating need to be checked again.
Is operating load smaller than static load rating?If yes,review operating speed and make sure that speed is within limits.Then determine the fit based on these factors:① Outer or inner ring rotation,② Stationary, rotational or impact loading③ Shaft and housing materials④ Fixed or expansion (free)⑤ Inner ring expansion due to centrifugal force at high rotation speeds.
Meanwhile,the seal and lubrication need to be considered too.
If you need crossed roller bearings and have any quesions on it,please contact us no hesitation.