Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71921 CD/P4A

71921 CD/P4A

Dimensions

d		105	mm
D		145	mm
B		20	mm
d₁		117.3	mm
d₂		117.3	mm
D₁		132.7	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		26.8	mm

Abutment dimensions

d_a	min.	111	mm
d_b	min.	111	mm
D_a	max.	139	mm
D_b	max.	141	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		120.6	mm

Calculation data

Basic dynamic load rating	C	61.8	kN
Basic static load rating	C₀	69.5	kN
Fatigue load limit	P_u	2.6	kN
Attainable speed for grease lubrication		8500	r/min
Attainable speed for oil-air lubrication		14000	r/min
Ball diameter	D_w	12.7	mm
Number of balls	z	27
Reference grease quantity	G_ref	11.1	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	230	N
Static axial stiffness, preload class A		110	N/µm
Preload class B	G_B	460	N
Static axial stiffness, preload class B		151	N/µm
Preload class C	G_C	920	N
Static axial stiffness, preload class C		215	N/µm
Preload class D	G_D	1840	N
Static axial stiffness, preload class D		316	N/µm
Calculation factors
Calculation factor	f	1.25
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	16.4

Mass

Mass bearing

0.82

Model Number: 71921 CD/P4A
Inner Diameter：105mm Outer Diameter：145mm Width：20mm
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：2021-06-07
Application:Die,Anti-defibrillation pacing,Forklift industry,hydraulic pressure gauge,quality inspection equipment,Water Monitoring,Hydraulic Rama,Machine tool accessories,medical equipment,ultra-quiet generators,printing machinery
Similar models:71921 ACD/HCP4AL S71921 ACD/HCP4A 71921 CD/HCP4A S71921 ACD/P4A 71921 CD/P4A S71921 CD/P4A S71921 CD/HCP4A 71921 ACD/P4AH1 71921 CD/P4AH1 71921 ACD/P4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71921CD/P4A products，there is large inventory of SKF 71921 CD/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 71921 CD/P4A Which SKF 71921CD/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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
16008/HR11TN	40	68	9	Bearings, units and housings
32x44x7 HMS5 V	32	44	7	Seals
61812-2RS1	60	78	10	Bearings, units and housings
7024 ACD/P4AL	120	180	28	Bearings, units and housings
71917 CE/HCP4AH1	85	120	18	Bearings, units and housings
FSAF 1517 TLC	74.6125	-	-	Bearings, units and housings
GEM 25 ESX-2LS	25	42	29	Bearings, units and housings
MVR1-12	12	26	-	Seals
NJ 211 ECP	55	100	21	Bearings, units and housings
NKI 35/30	35	50	30	Bearings, units and housings
S71917 ACE/P4A	85	120	18	Bearings, units and housings
TU 1.3/4 TF	44.45	-	-	Bearings, units and housings

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Hot number： 36220 48062 6216 NR 7006 CD/HCP4AH D/W R4 R-2RS1 HM 3196 IR 15x20x13 KD10-254 NA 4909 NJ 2326 ECPA NKI 55/25 TN NUP 205 ECML SAF 22611 x 1.7/8 T SD 45x55x4 SNL 3184 G