Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71917 CD/HCP4AL

71917 CD/HCP4AL

Dimensions

d		85	mm
D		120	mm
B		18	mm
d₁		95.8	mm
d₂		95.8	mm
D₁		109.2	mm
b		2.6	mm
C₁		9.3	mm
C₂		4	mm
C₃		2.8	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		22.8	mm

Abutment dimensions

d_a	min.	91	mm
d_b	min.	91	mm
D_a	max.	114	mm
D_b	max.	116	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		98.6	mm

Calculation data

Basic dynamic load rating	C	46.2	kN
Basic static load rating	C₀	48	kN
Fatigue load limit	P_u	2.04	kN
Attainable speed for grease lubrication		14000	r/min
Attainable speed for oil-air lubrication		20000	r/min
Ball diameter	D_w	11.112	mm
Number of balls	z	25
Reference grease quantity	G_ref	7.2	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	170	N
Static axial stiffness, preload class A		99	N/µm
Preload class B	G_B	340	N
Static axial stiffness, preload class B		135	N/µm
Preload class C	G_C	680	N
Static axial stiffness, preload class C		191	N/µm
Preload class D	G_D	1360	N
Static axial stiffness, preload class D		279	N/µm
Calculation factors
Calculation factor	f	1.2
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

0.45

Model Number: 71917 CD/HCP4AL
Inner Diameter：85mm Outer Diameter：120mm Width：18mm
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：2025-12-09
Application:medical equipment,animal,hardware,Optical Instruments,non-ferrous metal alloy,other accessories,printing equipment,industrial fans,sleep monitoring,ship special,transportation equipment
Similar models:71917 CD/HCP4AL S71917 CE/P4A 71917 CE/P4A 71917 CD/HCP4A 71917 CE/HCP4AH1 71917 ACE/HCP4AL S71917 CD/HCP4A 71917 CB/P4AL S71917 ACB/HCP4A S71917 ACB/P4A
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626-Z	6	19	6	Bearings, units and housings
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9982	25.4	44.5	6.35	Seals
AHX 310	45	50	35	Bearings, units and housings
BT4B 328727 G/HA1VA901	460	610	-	Bearings, units and housings
D/W RW168	6.35	9.525	3.967	Bearings, units and housings
NATV 17 PPXA	17	40	20	Bearings, units and housings
NU 318 ECM	90	190	43	Bearings, units and housings
W 619/7	7	17	5	Bearings, units and housings

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Hot number： 26122 85535 86111 91386 FSAF 22617 x 3 GE 20 ESX-2LS HM 911244/210 HME 31/750 K 55x60x20 NJ 307 ECJ NK 35/20 TN SNW 30x5.5/16 SY 1.3/8 TF/VA228 W 61908-2Z SYE 2 7/16 N