Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71903 CD/P4A

71903 CD/P4A

Dimensions

d		17	mm
D		30	mm
B		7	mm
d₁		20.9	mm
d₂		20.9	mm
D₁		25.7	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.2	mm
a		6.7	mm

Abutment dimensions

d_a	min.	19	mm
d_b	min.	19	mm
D_a	max.	28	mm
D_b	max.	28.6	mm
r_a	max.	0.3	mm
r_b	max.	0.2	mm
d_n		22.1	mm

Calculation data

Basic dynamic load rating	C	4.16	kN
Basic static load rating	C₀	2.08	kN
Fatigue load limit	P_u	0.088	kN
Attainable speed for grease lubrication		50000	r/min
Attainable speed for oil-air lubrication		75000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	14
Reference grease quantity	G_ref	0.24	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	15	N
Static axial stiffness, preload class A		16	N/µm
Preload class B	G_B	30	N
Static axial stiffness, preload class B		22	N/µm
Preload class C	G_C	60	N
Static axial stiffness, preload class C		30	N/µm
Preload class D	G_D	120	N
Static axial stiffness, preload class D		43	N/µm
Calculation factors
Calculation factor	f	1.05
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	9.8

Mass

Mass bearing

0.017

Model Number: 71903 CD/P4A
Inner Diameter：17mm Outer Diameter：30mm Width：7mm
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：2025-12-09
Application:organic raw materials,industrial equipment,insect experimental analysis instrument,storage and transportation equipment,agrochemical,top industry,directional control valve,packing equipment,power protection,Cleaning equipment,joint protection
Similar models:71903 ACD/HCP4A 71903 CE/P4A 71903 CE/HCP4A 71903 ACE/HCP4AH 71903 CE/P4AH 71903 ACD/P4A S71903 CD/P4A 71903 ACE/P4AH 71903 CD/P4A 71903 ACE/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71903CD/P4A products，there is large inventory of SKF 71903 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 71903 CD/P4A Which SKF 71903CD/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
12812	32.9946	45.974	7.0104	Seals
BD-23244 CCK/W33-OH 2344 H	200	400	144	Bearings, units and housings
52412 M	50	130	93	Bearings, units and housings
62495	158.75	190.5	12.7	Seals
71940 CD/P4AH1	200	280	38	Bearings, units and housings
95x120x12 CRW1 V	95	120	12	Seals
AHX 2318	85	90	79	Bearings, units and housings
BT2B 328028/HA1	711.2	914.4	-	Bearings, units and housings
BD-C 30/600 KM-OH 30/600 H	560	870	200	Bearings, units and housings
NJ 226 ECJ	130	230	40	Bearings, units and housings
SNW 34x5.15/16	150.8125	219.9894	122.8598	Bearings, units and housings
Z 008	40	-	6	Seals

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Hot number： 19x42x6 HMSA10 V 22330 CC/W33 23222 CCK/W33 23690/23620 305806 C-2Z 31261 55x100x12 HMS5 V 7008 CE/P4AL1 90852 BD-C 31/600 KMB-AOHX 31/600 HM 3092 IR 20x24x20 IR 8x12x10.5 N 600 OH 39/710 H