LM12749/LM12710

Inch Design Tapered Roller Bearings

LM12749/LM12710

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

Parts Number
LM12749/LM12710

Display units Metric Imperial

LM12749/LM12710

d	22	mm	Bore diameter
D	45.237	mm	Outside diameter
T	15.494	mm	Total width
B	16.637	mm	Width of inner ring
C	12.065	mm	Width of outer ring
Cup r (min.)	1.3	mm	Chamfer dimension of outer ring (Cup)
Cone r (min.)	1.3	mm	Chamfer dimension of inner ring (Cone)

Cr	36000	N	Basic dynamic load rating
C0r	33500	N	Basic static load rating

Grease	8500	min-1	Grease lubrication
Oil (Oil-bath)	11000	min-1	Oil-bath lubrication

Effective load center

da	27.5	mm	Diameter of shaft abutment
Da	39.5	mm	Diameter of housing abutment
db	26	mm	Diameter of shaft abutment
Db	42.5	mm	Diameter of housing abutment
ra (max.)	1.3	mm	Radius of shaft or housing fillet of inner ring
ra (max.)	1.3	mm	Radius of shaft or housing fillet of outer ring

Mass approx.	0.078	kg	Mass approx.(Cone)
Mass approx.	0.038	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