32256 Series

Metric Series Tapered Roller Bearings

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Grouped product items
Parts Number
32256 Metric Series Tapered Roller Bearings			Add to Compare You can use this service by registering as a member.
32256P5 Metric Series Tapered Roller Bearings			Add to Compare You can use this service by registering as a member.
32256P6 Metric Series Tapered Roller Bearings			Add to Compare You can use this service by registering as a member.

Product Information

Display units Metric Imperial

Designations

32256

Boundary Dimensions

d	280	mm	Bore diameter
D	500	mm	Outside diameter
T	137	mm	Total width
B	130	mm	Width of inner ring
C	106	mm	Width of outer ring
Cup r (min.)	5	mm	Chamfer dimension of outer ring (Cup)
Cone r (min.)	6	mm	Chamfer dimension of inner ring (Cone)

Basic Load Ratings

C_r	2400000	N	Basic dynamic load rating
C_0r	3450000	N	Basic static load rating

Speeds

Grease	630	min^-1	Grease lubrication
Oil (Oil-bath)	850	min^-1	Oil-bath lubrication

Dimensions

123

Effective load center

Abutment and Fillet Dimensions

da (min.)	313	mm	Diameter of shaft abutment
Db (min.)	467	mm	Diameter of housing abutment
Da (min.)	412	mm	Diameter of housing abutment
Da (max.)	478	mm	Diameter of housing abutment
Sa	14	mm	Minimum width of space required in housing on large side face
Sb	31	mm	Minimum width of space required in housing on small side face
db (max.)	325	mm	Diameter of shaft abutment
ra (max.)	5	mm	Radius of shaft or housing fillet of inner ring
ra (max.)	4	mm	Radius of shaft or housing fillet of outer ring

Calculation factors

e	0.47	Constant
Y0	0.7	Axial load Factors
Y1	1.3	Axial load Factors

Mass

(approx.)

109

Drawing for Reference

Designations	Boundary Dimensions					Basic Load Ratings		Tolerance Class	Limiting Speeds		Mass
Designations	d (mm)	D (mm)	T (mm)	B (mm)	C (mm)	C_r (N)	C_0r (N)	Tolerance Class	Grease (min^-1)	Oil (Oil-bath) (min^-1)	(approx.) (kg)
32256	280	500	137	130	106	2400000	3450000		630	850	109

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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

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NSK Product Type2	TRBSR_MD
NSK Product Type	Bearing
Designations	32256