Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Double row cylindrical roller bearings -- Cylindrical roller bearings, double row SKF BC2B 316521

BC2B 316521

Design

Design variant/feature

NNU.4/W33W

Dimensions

d		440	mm
D		640	mm
B		230	mm
D₁	≈	578	mm
F		482	mm
b		16.7	mm
K		9	mm
r_1,2	min.	6	mm
r_3,4	min.	6	mm
s	max.	5.5	mm

Abutment dimensions

d_a	min.	466	mm
d_a	max.	475	mm
d_b	min.	487	mm
D_a	max.	614	mm
r_a	max.	5	mm
r_b	max.	5	mm

Calculation data

Basic dynamic load rating	C	4570	kN
Basic static load rating	C₀	9800	kN
Fatigue load limit	P_u	780	kN
Reference speed		850	r/min
Limiting speed		1000	r/min
Calculation factor	k_r	0.33

Mass

Mass bearing

250

Model Number: BC2B 316521
Inner Diameter：440mm Outer Diameter：640mm Width：230mm
Reference speed:1000 r/min Limiting speed:850 r/min
Type：Bearings, units and housings Roller bearings Cylindrical roller bearings Double row cylindrical roller bearings
Details： Double row cylindrical roller bearings Cylindrical roller bearings, double row
Update date：2026-04-16
Application:diving equipment,molding machine,wheel lathe,Grinding and polishing equipment,circulating pump,Cylinder Micro,walking Food processing machinery and equipment,Dental Drill etc,tube,orthodontic material,sheet industry
Similar models:BC2B 316521
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Model No.	Inner Diameter	Outer Diameter	Width	Type
2400250	609.6	647.7	19.05	Seals
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23976 CCK/W33	380	520	106	Bearings, units and housings
400905	81	-	-	Seals
609/630 MB	630	850	71	Bearings, units and housings
7006 ACB/P4A	30	55	13	Bearings, units and housings
708 ACD/HCP4A	8	22	7	Bearings, units and housings
KRVE 62 PPA	-	62	80	Bearings, units and housings
NX 10 Z	10	19	18	Bearings, units and housings
OKCX 130	130		-
PCM 12012560 M	120	125	60	Bearings, units and housings
YAR 203-010-2F	15.875	40	27.4	Bearings, units and housings

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