Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71917 CD/HCP4A

71917 CD/HCP4A

Dimensions

d		85	mm
D		120	mm
B		18	mm
d₁		95.8	mm
d₂		95.8	mm
D₁		109.2	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/HCP4A
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：2026-04-16
Application:Spectrum Products,Chromatography Products,impression material,Garment Accessories,Embroidery,set bacteria instrument,generator,medical equipment,organic raw materials,Industrial equipment,Digital Generator
Similar models:71917 ACB/HCP4AL S71917 CB/P4A 71917 CB/P4A 71917 CE/HCP4AH1 S71917 CE/HCP4A 71917 CD/P4AH1 71917 ACE/HCP4AH1 71917 CB/HCP4AL S71917 CD/HCP4A 71917 CD/HCP4A
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Model No.	Inner Diameter	Outer Diameter	Width	Type
1150 VA R	1045	-	-	Seals
220x260x16 HDS1 R	220	260	16	Seals
170x200x15 HMSA10 RG	170	200	15	Seals
3307 A-2RS1TN9/MT33	35	80	34.9	Bearings, units and housings
36x62x7 HMSA10 V	36	62	7	Seals
4700566	1193.8	1244.6	22.23	Seals
71821 CD/HCP4	105	130	13	Bearings, units and housings
NU 315 ECM/C3VL0241	75	160	37	Bearings, units and housings
S7022 ACE/HCP4A	110	170	28	Bearings, units and housings
S7206 CD/HCP4A	30	62	16	Bearings, units and housings
SNL 3144 TURA	200	-	-	Bearings, units and housings
Z 004	20	-	5	Seals

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Hot number： 1305 EKTN9 + H 305 18x35x7 HMSA10 RG 32313 33015/DFC240 7215 BEGAP FYR 2-3 NKI 17/16 NNU 4188 M/W33 NU 315 ECJ PBMF 152216 M1G1 PPM 252820 RN-3.5x21.8 BF/G2 SAF 1517 x 2.13/16 SAFS 22515-11 T SY 45 TF/VA228