Double row tapered roller bearing
TNA, TNASW, TNASWE Xing Lun Bearings Group Limited

TNA (two-row non-adjustable/TNA with lubrication grooves/TNA with extended ribs)
Design attributes:
- Double cup and two single cones
- Internal bearing clearance controlled by extending the front faces of the cones so they contact each other
- SW variation features chamfers in the bores at the front faces of the two single cones to form a lubrication groove
- SE variation features a backface rib design to accommodate radial lip seals or stamped closure
Potential applications: sheaves, crane sheaves, oil-field drilling rig sheaves and applications where two-row preset bearings are required

TNASW/TNASWE
Design attributes:
- Double cup and two single cones
- Internal bearing clearance controlled by extending the front faces of the cones so they contact each other
- SW variation features chamfers in the bores at the front faces of the two single cones to form a lubrication groove
- SE variation features a backface rib design to accommodate radial lip seals or stamped closure

Potential applications: sheaves, crane sheaves, oil-field drilling rig sheaves and applications where two-row preset bearings are required