LM300849/LM300811

Inch Design Tapered Roller Bearings

LM300849/LM300811

Images shown are representations. Designs and specifications may differ from actual products.

Parts Number
LM300849R/LM300811R

Display units Metric Imperial

LM300849R/LM300811R

d	41	mm	Bore diameter
D	68	mm	Outside diameter
T	17.5	mm	Total width
B	18	mm	Width of inner ring
C	13.5	mm	Width of outer ring
Cup r (min.)	1.5	mm	Chamfer dimension of outer ring (Cup)
Cone r (min.)	SPEC	mm	Chamfer dimension of inner ring (Cone)

Cr	53500	N	Basic dynamic load rating
C0r	58000	N	Basic static load rating

Grease	5300	min-1	Grease lubrication
Oil (Oil-bath)	7100	min-1	Oil-bath lubrication

13.9

Effective load center

da	52	mm	Diameter of shaft abutment
Da	61	mm	Diameter of housing abutment
db	45	mm	Diameter of shaft abutment
Db	65	mm	Diameter of housing abutment
ra (max.)	3.5	mm	Radius of shaft or housing fillet of inner ring
ra (max.)	1.5	mm	Radius of shaft or housing fillet of outer ring

Mass approx.	0.16	kg	Mass approx.(Cone)
Mass approx.	0.082	kg	Mass approx.(Cup)

CAD

Customer Questions

How are angular contact ball bearings (ACBBs) different from tapered roller bearings (TRBs)?

TRBs provide higher load capacity and rigidity than ACBBs. However, ACBBs can offer rotation at higher speeds than TRBs.

More Information
NSK Product Type2	TRBSR_ID
NSK Product Type	Bearing