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

71907 CD/P4A

Dimensions

d		35	mm
D		55	mm
B		10	mm
d₁		41.6	mm
d₂		41.6	mm
D₁		48.4	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		11.1	mm

Abutment dimensions

d_a	min.	38.2	mm
d_b	min.	38.2	mm
D_a	max.	51.8	mm
D_b	max.	53.6	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm
d_n		43	mm

Calculation data

Basic dynamic load rating	C	9.75	kN
Basic static load rating	C₀	6.55	kN
Fatigue load limit	P_u	0.275	kN
Attainable speed for grease lubrication		26000	r/min
Attainable speed for oil-air lubrication		40000	r/min
Ball diameter	D_w	5.556	mm
Number of balls	z	21
Reference grease quantity	G_ref	0.93	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	35	N
Static axial stiffness, preload class A		32	N/µm
Preload class B	G_B	70	N
Static axial stiffness, preload class B		42	N/µm
Preload class C	G_C	140	N
Static axial stiffness, preload class C		58	N/µm
Preload class D	G_D	280	N
Static axial stiffness, preload class D		82	N/µm
Calculation factors
Calculation factor	f	1.1
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.09
Calculation factor	f_2D	1.15
Calculation factor	f_HC	1
Calculation factor	f₀	10.4

Mass

Mass bearing

0.074

Model Number: 71907 CD/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：2021-06-05
Application:natural instruments,Anti-defibrillation pacing,security equipment,Storage Tool,auto tools,CNC,Spectral Products,textile machinery,gantry processing,altimeter etc,boring bar boring bar
Similar models:S71907 ACD/HCP4A S71907 CB/HCP4A 71907 CE/HCP4AL S71907 ACE/P4A 71907 ACE/P4AL S71907 CE/P4A 71907 CE/HCP4A S71907 CD/HCP4A 71907 CB/P4A 71907 CE/HCP4AH
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87784	-	-	15.875	Seals
99490	125	137.16	13.9954	Seals
GS 89313	65	115	10.5	Bearings, units and housings
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PCM 242730 E	24	27	30	Bearings, units and housings
SAFS 22518 x 3.1/16	77.7875	-	-	Bearings, units and housings
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Hot number： 1306 EKTN9 275x310x16 HDS1 R 50 VA V 86000 99548 FSAF 22220 TLC H 2305 K 24x30x17 N 1011 KTNHA/HC5SP NCF 2912 CV NNU 4176 M PFD 20 WF RNA 4905 SIL 12 E SYNT 50 F