Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71934 ACD/HCP4A

71934 ACD/HCP4A

Dimensions

d		170	mm
D		230	mm
B		28	mm
d₁		188.5	mm
d₂		188.5	mm
D₁		211.5	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
a		60.8	mm

Abutment dimensions

d_a	min.	179	mm
d_b	min.	179	mm
D_a	max.	221	mm
D_b	max.	225	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		193.5	mm

Calculation data

Basic dynamic load rating	C	124	kN
Basic static load rating	C₀	160	kN
Fatigue load limit	P_u	4.8	kN
Attainable speed for grease lubrication		6000	r/min
Attainable speed for oil-air lubrication		9000	r/min
Ball diameter	D_w	19.05	mm
Number of balls	z	29
Reference grease quantity	G_ref	36	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	800	N
Static axial stiffness, preload class A		460	N/µm
Preload class B	G_B	1600	N
Static axial stiffness, preload class B		606	N/µm
Preload class C	G_C	3200	N
Static axial stiffness, preload class C		811	N/µm
Preload class D	G_D	6400	N
Static axial stiffness, preload class D		1112	N/µm
Calculation factors
Calculation factor	f	1.3
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.17
Calculation factor	f_HC	1.04
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

2.34

Model Number: 71934 ACD/HCP4A
Inner Diameter：170mm Outer Diameter：230mm 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：2026-06-24
Application:comprehensive experiment,fabric products,sample cup,test equipment,instrument,product accessories,turret industry,extruder,plastic molding,hook,linear drive
Similar models:71934 ACD/HCP4AH1 71934 ACD/P4AH1 71934 CD/HCP4A 71934 CD/P4AH1 71934 CD/HCP4AH1 71934 ACD/P4A 71934 ACD/HCP4A
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Model No. Inner Diameter Outer Diameter Width Type

1305 EKTN9 + H 305
401104
NU 1292 MA
PCMF 101217 E
SD 32x42x4

Purchase the SKF 71934 ACD/HCP4A Please fill in the following

Hot number： 22232 CCK/W33 + AH 3132 G 408002 AS 150190 BS2-2310-2RS/VT143 FSAF 22520 x 3.5/16 T FYRP 3 1/2-18 G 25x35x4 GEZ 308 ES-2LS GEZH 112 ES-2LS HK 2820 PRMF 707570 PSMF 081206 A51 S7211 ACD/P4A SILJ 50 ES Z 014

Model No.	Inner Diameter	Outer Diameter	Width	Type
1305 EKTN9 + H 305
401104
NU 1292 MA
PCMF 101217 E
SD 32x42x4