Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NU 31/500 ECMA/HB1

NU 31/500 ECMA/HB1

Dimensions

d		500	mm
D		830	mm
B		264	mm
D₁	≈	728	mm
F		576	mm
r_1,2	min.	7.5	mm
s	max.	14.5	mm

Abutment dimensions

d_a	min.	532	mm
d_a	max.	564	mm
d_b	min.	581	mm
D_a	max.	798	mm
r_a	max.	6	mm

Calculation data

Basic dynamic load rating	C	6440	kN
Basic static load rating	C₀	12000	kN
Fatigue load limit	P_u	880	kN
Reference speed		600	r/min
Limiting speed		1000	r/min
Calculation factor	k_r	0.21
Limiting value	e	0.3
Axial load factor	Y	0

Mass

Mass bearing

595

Model Number: NU 31/500 ECMA/HB1
Inner Diameter：500mm Outer Diameter：830mm Width：264mm
Reference speed:1000 r/min Limiting speed:600 r/min
Type：Bearings, units and housings Roller bearings Cylindrical roller bearings Single row cylindrical roller bearings
Details： Single row cylindrical roller bearings Cylindrical roller bearings, single row
Update date：2026-06-24
Application:machine lathe,Insect Count,Optical Instruments,car,economic mold,glass processing machine,Laser Measurements,defogging and degreasing,insect experimental analysis instrument,construction machinery and equipment,Antenna Potentials
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Model No. Inner Diameter Outer Diameter Width Type

231/670 CAK/W33
250 VL R
35x58x10 HMS5 V
61913-2RZ
GB 3019

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Hot number： 115x140x12 HMS5 RG 16013 BD-22252 CCK/W33-AOH 2252 G 30228/DF 30x50x8 CRW1 V 59999 608-2RSH 6316-2RS1 FSAF 1611 x 2 T GB 4960 N 317 ECM NUTR 45 X NX 25 SYK 35 WD W 633

Model No.	Inner Diameter	Outer Diameter	Width	Type
231/670 CAK/W33
250 VL R
35x58x10 HMS5 V
61913-2RZ
GB 3019