Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71912 ACB/P4A

S71912 ACB/P4A

Dimensions

d		60	mm
D		85	mm
B		13	mm
d₁		68.94	mm
d₂		67.73	mm
D₂		78.36	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		27.2	mm

Abutment dimensions

d_a	min.	64.6	mm
d_a	max.	68.3	mm
d_b	min.	64.6	mm
d_b	max.	67.1	mm
D_a	max.	80.4	mm
D_b	max.	83	mm
r_a	max.	1	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	13.3	kN
Basic static load rating	C₀	13.4	kN
Fatigue load limit	P_u	0.355	kN
Attainable speed for grease lubrication		19000	r/min
Ball diameter	D_w	5.556	mm
Number of balls	z	30
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	57	N
Static axial stiffness, preload class A		94	N/µm
Preload class B	G_B	115	N
Static axial stiffness, preload class B		122	N/µm
Preload class C	G_C	340	N
Static axial stiffness, preload class C		182	N/µm
Calculation factors
Calculation factor	f	1.11
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.07
Calculation factor	f_HC	1
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

0.2

Model Number: S71912 ACB/P4A
Inner Diameter：60mm Outer Diameter：85mm Width：13mm
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：2021-06-08
Application:wall materials,Machine tool accessories,lifting equipment Hoisting hoist,clean stationery,miscellaneous instruments,reinforced machinery,medical equipment,Medical equipment,hardware,other lathe,test laboratory equipment and accessories
Similar models:71912 CE/HCP4A 71912 ACD/HCP4AL 71912 CE/P4AL S71912 CB/P4A S71912 CD/HCP4A S71912 CE/P4A 71912 ACB/P4AL 71912 ACB/HCP4AL 71912 CB/P4AL 71912 CE/HCP4AH1
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38749	98.425	139.73	12.7	Seals
402756	247	-	-	Seals
70x90x10 CRW1 V	70	90	10	Seals
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99599	152.4	161.925	31.75	Seals
C 31/710 MB	710	1150	345	Bearings, units and housings
OKC 730	730		-
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SIL 12 E	12	-	10	Bearings, units and housings
WS 81109	45		4	Bearings, units and housings

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Hot number： 31305 55x90x10 HMSA10 RG 61914-2RZ 6314-2RS1 70/630 AMB 7008 CE/HCP4AH1 70x90x7 HMS5 V1 7215 BECBP FYK 35 WR/VL065 NJ 2210 ECPH PPM 161820 SAFS 22516 x 2.3/4 SSAFS 22524 T SSAFS 22538 x 6.13/16 W 630/1.5 R-2Z