A2047/A2126

Inch Design Tapered Roller Bearings

A2047/A2126

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

Grouped product items
Parts Number
A2047/A2126
A2047R/A2126R

Display units Metric Imperial

A2047/A2126

d	12	mm	Bore diameter
D	31.991	mm	Outside diameter
T	10.008	mm	Total width
B	10.785	mm	Width of inner ring
C	7.938	mm	Width of outer ring
Cup r (min.)	1.3	mm	Chamfer dimension of outer ring (Cup)
Cone r (min.)	0.8	mm	Chamfer dimension of inner ring (Cone)

Cr	12700	N	Basic dynamic load rating
C0r	8900	N	Basic static load rating

Grease	13000	min-1	Grease lubrication
Oil (Oil-bath)	18000	min-1	Oil-bath lubrication

6.8

Effective load center

da	16.5	mm	Diameter of shaft abutment
Da	26	mm	Diameter of housing abutment
db	15.5	mm	Diameter of shaft abutment
Db	29	mm	Diameter of housing abutment
ra (max.)	0.8	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.	0.023	kg	Mass approx.(Cone)
Mass approx.	0.017	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