LM121948D-LM121911 TDI (Two-Row Double Inner Race) (Imperial)
Part Number LM121948D-LM121911
System of Measurement Inch
Type Bearing
Cone Part Number LM121948D
Cup Part Number LM121911
Bearing Type Roller
Roller Bearing Type Tapered Roller
For Load Direction Combined
Construction Double Row
Seal Type Open
Cups Type Standard
Series LM121900
Bore Dia 4.25"
Bore Dia Tolerance +0.001" to 0
Outer Dia 6"
Outer Dia Tolerance +0.001" to 0
Double Cone Width 2.5625"
Double Cone Width Tolerance +0.003" to -0.01
Cup Width 1.125"
Cup Width Tolerance +0.002" to -0.01
Bearing Width Across Cups 2.5624"
Bearing Width Across Cups Tolerance +0.014" to -0.01"
Cone Backface ToClear Radius 0.03"
Cup Backface ToClear Radius 0.13"
Cup Frontface Backing Diameter 4.53"
Cup Backface Backing Diameter 5.51"
Dynamic Radial Load 65900 lbf
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Rating(One Row 90 Million Revolutions) 9810 lbf
Dynamic Thrust Rating(90 Million Revolutions) 4740 lbf
Dynamic Radial Rating(Two Row 90 Million Revolutions) 17100 lbf
Lubrication Required
Temperature Range -30° to 110 °C
ABEC Rating ABEC-1
Radial Clearance Standard (Available in C3/C4/C5)
RoHS Compliant
REACH Compliant
Weight 7.9 lb