Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications14 parameters

Core specifications
Parameter	Symbol	Value
Series		231/900
Bore diameter	d	900 mm
Outside diameter	D	1420 mm
Width	B	412 mm
Basic dynamic load rating	C	18000 kN
Basic static load rating	C0	40500 kN
Fatigue load limit	Pu	2600 kN
Reference speed	nref	149 r/min
Limiting speed	nG	365 r/min
Mass	≈m	2560 kg
Internal clearance		CN (Group N) — Normal internal clearance
Cage		MB — Solid brass cage
Minimum operating temperature	Tmin	-30 °C
Maximum operating temperature	Tmax	200 °C

Product characteristics5 parameters

Product characteristics
Parameter	Symbol	Value
Design	B	With fixed central rib
Bore type	Z	Cylindrical
Cage	MB	Solid brass cage
Radial internal clearance	CN (Group N)	Normal internal clearance
Relubrication feature	H40	Without lubricating groove and holes

Main Dimensions & Performance Data9 parameters

Main Dimensions & Performance Data
Parameter	Symbol	Value
Bore diameter	d	900 mm35.433 in
Outside diameter	D	1,420 mm55.906 in
Width	B	412 mm16.22 in
Basic dynamic load rating, radial	Cr	18,000,000 N4,046,762.59 lbf
Basic static load rating, radial	C0r	40,500,000 N9,105,215.827 lbf
Fatigue load limit, radial	Cur	2,600,000 N584,532.374 lbf
Limiting speed	nG	365 1/min
Reference speed	nϑr	149 1/min
Mass	≈m	2,560 kg5,643.827 lbs

Mounting dimensions3 parameters

Mounting dimensions
Parameter	Symbol	Value
Minimum diameter shaft shoulder	da min	948 mm37.323 in
Maximum diameter of housing shoulder	Da max	1,372 mm54.016 in
Maximum recess radius	ra max	10 mm0.394 in

Dimensions2 parameters

Dimensions
Parameter	Symbol	Value
Minimum chamfer dimension	rmin	12 mm0.472 in
Bore diameter outer ring	D1	1,252.4 mm49.307 in

Temperature range2 parameters

Temperature range
Parameter	Symbol	Value
Operating temperature min.	Tmin	-30 °C-22 °F
Operating temperature max.	Tmax	200 °C392 °F

Calculation factors4 parameters

Calculation factors
Parameter	Symbol	Value
Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y	e	0.29
Dynamic axial load factor	Y1	2.33
Dynamic axial load factor	Y2	3.47
Static axial load factor	Y0	2.28

Capabilities & suitability8 parameters

Capabilities & suitability
Parameter	Symbol	Value
Radial load capacity		Yes
Axial load capacity in one direction		Yes
Axial load capacity in both directions		Yes
Suitable for grease lubrication		Yes
Suitable for oil lubrication		Yes
Unsealed design		Yes
Staticangularerrorandmisalignment		Yes
Dynamicangularerrorandmisalignment		Yes

Manufacturer Identity6 parameters

Product Identity2 parameters

Product Identity
Parameter	Symbol	Value
Construction		Spherical roller bearing 231..-B-MB-H40, symmetric 3 ribs
Short Description		Spherical Roller Bearing

Technical Data19 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		900 mm
Outside Diamater (D)		1,420 mm
Total Width (B)		412 mm
Basic Dynamic Load Rating, Radial (Cr)		18,000,000 N
Basic Static Load Rating, Radial (C0R)		40,500,000 N
Operating Temperature Min. (Tmin)		-30 °C
Minimum Diameter Shaft Shoulder (Da)		948 mm
Operating Temperature Max. (Tmax)		200 °C
Limiting Speed (Limiting Spe)		365 1/min
Reference Speed (Nϑr)		149 1/min
Maximum Recess Radius (Ra Max)		10 mm
Maximum Diameter Of Housing Shoulder (Da)		1,372 mm
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)		0.29
Dynamic Axial Load Factor (Y1)		2.33
Bore Diameter Outer Ring (D1)		1,252.4 mm
Minimum Chamfer Dimension (Rmin)		12 mm
Static Axial Load Factor (Y0)		2.28
Dynamic Axial Load Factor (Y2)		3.47
Fatigue Load Limit, Radial (Cur)		2,600,000 N