Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71930 CD/HCP4AL

71930 CD/HCP4AL

Dimensions

d		150	mm
D		210	mm
B		28	mm
d₁		168.5	mm
d₂		168.5	mm
D₁		191.5	mm
b		2.6	mm
C₁		15.6	mm
C₂		6.6	mm
C₃		5.6	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
a		38.2	mm

Abutment dimensions

d_a	min.	159	mm
d_b	min.	159	mm
D_a	max.	201	mm
D_b	max.	205	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		173.5	mm

Calculation data

Basic dynamic load rating	C	114	kN
Basic static load rating	C₀	132	kN
Fatigue load limit	P_u	4.15	kN
Attainable speed for grease lubrication		7500	r/min
Attainable speed for oil-air lubrication		11000	r/min
Ball diameter	D_w	19.05	mm
Number of balls	z	23
Reference grease quantity	G_ref	35	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	470	N
Static axial stiffness, preload class A		158	N/µm
Preload class B	G_B	940	N
Static axial stiffness, preload class B		216	N/µm
Preload class C	G_C	1880	N
Static axial stiffness, preload class C		306	N/µm
Preload class D	G_D	3760	N
Static axial stiffness, preload class D		450	N/µm
Calculation factors
Calculation factor	f	1.24
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.18
Calculation factor	f_HC	1.04
Calculation factor	f₀	16.2

Mass

Mass bearing

2.08

Model Number: 71930 CD/HCP4AL
Inner Diameter：150mm Outer Diameter：210mm Width：28mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Angular contact ball bearings Angular contact ball bearings, super-precision
Details： Angular contact ball bearings, super-precision
Update date：2025-11-30
Application:Industrial,trolley,large agricultural machinery,bag machine,Broadcasting System,set bacteria instrument,industrial skin care,historical instruments,sucker industry,hydraulic pump,respirator
Similar models:71930 ACD/HCP4AH1 71930 CD/P4A 71930 CD/HCP4AL 71930 ACD/P4A S71930 ACD/HCP4A 71930 CD/P4AL 71930 ACD/P4AH1 S71930 CD/HCP4A S71930 ACD/P4A 71930 CD/P4AH1
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Model No.	Inner Diameter	Outer Diameter	Width	Type
108x140x15 HMS5 V	108	140	15	Seals
307 NR	35	80	21	Bearings, units and housings
38x55x10 HMSA10 V	38	55	10	Seals
400x440x20 HDS1 R	400	440	20	Seals
42x66x10 HMSA10 V	42	66	10	Seals
6004-2Z/VA201	20	42	12	Bearings, units and housings
750x780x18 HDS1 R	750	780	18	Seals
7015 ACD/P4AL	75	115	20	Bearings, units and housings
90023	228.6	266.7	15.88	Seals
NATV 6 PPXA	6	19	11	Bearings, units and housings
SAW 23240 T	200	-	-	Bearings, units and housings
Z 215	75	-	7	Seals

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Hot number： BD-23152 CCK/W33-AOH 3152 G 24196 ECA/W33 82559 85636 C 30/530 KM HA 310 E NU 2944 ECMA NJ 344 M NU 2306 ECP OH 2352 H PBM 6580120 M1G1 PWM 354130 SNW 10x1.5/8 W 626 R-2RZ YAR 209-112-2FW/VA201