Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71907 ACB/P4A

71907 ACB/P4A

Dimensions

d		35	mm
D		55	mm
B		10	mm
d₁		42.46	mm
d₂		41.56	mm
D₂		49.5	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		18.4	mm

Abutment dimensions

d_a	min.	38.2	mm
d_b	min.	38.2	mm
D_a	max.	51.8	mm
D_b	max.	53	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm
d_n		43	mm

Calculation data

Basic dynamic load rating	C	6.5	kN
Basic static load rating	C₀	5.85	kN
Fatigue load limit	P_u	0.146	kN
Attainable speed for grease lubrication		30000	r/min
Attainable speed for oil-air lubrication		48000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	25
Reference grease quantity	G_ref	0.96	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	29	N
Static axial stiffness, preload class A		59	N/µm
Preload class B	G_B	58	N
Static axial stiffness, preload class B		75	N/µm
Preload class C	G_C	175	N
Static axial stiffness, preload class C		114	N/µm
Calculation factors
Calculation factor	f	1.06
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

0.078

Model Number: 71907 ACB/P4A
Inner Diameter：35mm Outer Diameter：55mm Width：10mm
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:Body shaping,centrifugal pump,food sterilization,fabric products,industrial fans,rehabilitation training equipment,coal mill,Other Measurements,chemical,internal combustion engine,bag machine
Similar models:S71907 ACB/P4A S71907 ACE/P4A 71907 CB/HCP4A 71907 CE/HCP4AL 71907 CE/P4A 71907 ACE/HCP4AL 71907 CE/HCP4AH S71907 CD/P4A 71907 CE/P4AH 71907 ACB/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71907ACB/P4A products，there is large inventory of SKF 71907 ACB/P4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71907 ACB/P4A Which SKF 71907ACB/P4A is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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