32960 Series

Metric Series Tapered Roller Bearings
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Designations

32960

Boundary Dimensions

d 300 mm Bore diameter
D 420 mm Outside diameter
T 76 mm Total width
B 72 mm Width of inner ring
C 62 mm Width of outer ring
Cup r (min.) 3 mm Chamfer dimension of outer ring (Cup)
Cone r (min.) 4 mm Chamfer dimension of inner ring (Cone)

Basic Load Ratings

Cr 1100000 N Basic dynamic load rating
C0r 1820000 N Basic static load rating

Speeds

Grease 710 min-1 Grease lubrication
Oil (Oil-bath) 950 min-1 Oil-bath lubrication

Dimensions

a 79.3 mm Effective load center

Abutment and Fillet Dimensions

da (min.) 321 mm Diameter of shaft abutment
Db (min.) 405 mm Diameter of housing abutment
Da (min.) 386 mm Diameter of housing abutment
Da (max.) 406 mm Diameter of housing abutment
Sa 13 mm Minimum width of space required in housing on large side face
Sb 14 mm Minimum width of space required in housing on small side face
db (max.) 326 mm Diameter of shaft abutment
ra (max.) 3 mm Radius of shaft or housing fillet of inner ring
ra (max.) 2.5 mm Radius of shaft or housing fillet of outer ring

Calculation factors

e 0.37 Constant
Y0 0.88 Axial load Factors
Y1 1.6 Axial load Factors

Mass

(approx.) 30.5 kg
Designations Boundary Dimensions Basic Load Ratings Tolerance Class Limiting Speeds Mass
d
(mm)
D
(mm)
T
(mm)
B
(mm)
C
(mm)
Cr
(N)
C0r
(N)
Grease
(min-1)
Oil (Oil-bath)
(min-1)
(approx.)
(kg)
32960 300 420 76 72 62 1100000 1820000 710 950 30.5

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Not to scale.
(*) The chamfer dimensions are minimum values.
Suffix C represents medium-angle tapered roller bearings. Since they are designed for specific applications, please consult NSK when using bearings with suffix C.
The bore diameter "no-go side" tolerances (High) specified in this drawing do not necessarily apply within a distance from the ring face to 1.2 times the chamfer dimension r (max).
Some of these tolerances conform to NSK standards.

CAD
More Information
NSK Product Type2 TRBSR_MD
NSK Product Type Bearing
Designations 32960
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