Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71911 CE/P4A

71911 CE/P4A

Dimensions

d		55	mm
D		80	mm
B		13	mm
d₁		62.75	mm
d₂		60.7	mm
D₁		72.3	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		16.2	mm

Abutment dimensions

d_a	min.	59.6	mm
d_b	min.	57	mm
D_a	max.	75.4	mm
D_b	max.	78	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		64.6	mm

Calculation data

Basic dynamic load rating	C	15.3	kN
Basic static load rating	C₀	10.6	kN
Fatigue load limit	P_u	0.455	kN
Attainable speed for grease lubrication		24000	r/min
Attainable speed for oil-air lubrication		36000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	21
Reference grease quantity	G_ref	2.3	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	83	N
Static axial stiffness, preload class A		42	N/µm
Preload class B	G_B	250	N
Static axial stiffness, preload class B		67	N/µm
Preload class C	G_C	500	N
Static axial stiffness, preload class C		92	N/µm
Calculation factors
Calculation factor	f	1.16
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1
Calculation factor	f₀	8.4

Mass

Mass bearing

0.17

Model Number: 71911 CE/P4A
Inner Diameter：55mm Outer Diameter：80mm 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：2024-12-13
Application:Roller,altimeter etc,pressure control valve,Storage Device,sleep monitoring,medical equipment,Surveying Surveying Instruments,food sterilization,plastic rolling,Broadcasting System,security
Similar models:71911 CB/P4A 71911 ACD/HCP4A 71911 CE/P4AH1 71911 CE/P4A S71911 ACE/P4A 71911 CB/P4AL 71911 ACE/P4AH1 71911 CD/P4A S71911 ACE/HCP4A 71911 CD/P4AL
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Model No.	Inner Diameter	Outer Diameter	Width	Type
100x140x12 HMSA10 V	100	140	12	Seals
250x280x15 HMS5 RG	250	280	15	Seals
51316	80	140	44	Bearings, units and housings
52x63x8 HMSA10 V	52	63	8	Seals
6204/HR11TN	20	47	14	Bearings, units and housings
6212-2Z/VA201	60	110	22	Bearings, units and housings
99822	38.1	45.2374	17.4752	Seals
FYAWK 40 LTA	40	-	-	Bearings, units and housings
NNU 4880/HB1W33	400	500	100	Bearings, units and housings
SYE 2 15/16-3	74.6125	-	-	Bearings, units and housings
SYE 2 3/16-18	55.5625	-	-	Bearings, units and housings
WBB1-8708 R-2RS1	8	14	4	Bearings, units and housings

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Hot number： BD-230/900 CAK/W33-OH 30/900 H 32940 34887 7015 ACD/P4AH1 7412 BGBM 99481 BT1B 328214/HA5 GB 1010 NKXR 20 NUP 2320 ECJ NUP 322 ECJ OH 3976 HE SAF 22515 x 2.1/2 TLC TUWK 1.7/16 LTA SNW 3024x4.1/4