Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71944 CD/P4AL

71944 CD/P4AL

Dimensions

d		220	mm
D		300	mm
B		38	mm
d₁		244.7	mm
d₂		244.7	mm
D₁		275.3	mm
b		3.5	mm
C₁		20.9	mm
C₂		7.1	mm
C₃		5.45	mm
r_1,2	min.	2.1	mm
r_3,4	min.	1	mm
a		54	mm

Abutment dimensions

d_a	min.	231	mm
d_b	min.	231	mm
D_a	max.	289	mm
D_b	max.	295	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		251.4	mm

Calculation data

Basic dynamic load rating	C	221	kN
Basic static load rating	C₀	300	kN
Fatigue load limit	P_u	7.8	kN
Attainable speed for grease lubrication		4300	r/min
Attainable speed for oil-air lubrication		6300	r/min
Ball diameter	D_w	25.4	mm
Number of balls	z	29
Reference grease quantity	G_ref	84	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	850	N
Static axial stiffness, preload class A		224	N/µm
Preload class B	G_B	1700	N
Static axial stiffness, preload class B		306	N/µm
Preload class C	G_C	3400	N
Static axial stiffness, preload class C		434	N/µm
Preload class D	G_D	6800	N
Static axial stiffness, preload class D		635	N/µm
Calculation factors
Calculation factor	f	1.28
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	16.5

Mass

Mass bearing

6.6

Model Number: 71944 CD/P4AL
Inner Diameter：220mm Outer Diameter：300mm Width：38mm
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:sample cup,motor,supporting facilities,transistor fittings,ventilation heating equipment,security,lifting upgrade,chemical instruments,chamfering machine etc,milling head plug,Forging machine
Similar models:71944 CD/P4AL 71944 CD/HCP4AL 71944 ACD/HCP4A 71944 ACD/P4AL 71944 CD/HCP4A 71944 ACD/P4A 71944 ACD/HCP4AL 71944 CD/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71944CD/P4AL products，there is large inventory of SKF 71944 CD/P4AL Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71944 CD/P4AL Which SKF 71944CD/P4AL 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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17544	44.45	69.85	6.35	Seals
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807199	606.425	682.625	-	Seals
90773	-	-	40	Seals
PSMF 081408 A51	8	14	8	Bearings, units and housings
S7010 CD/P4A	50	80	16	Bearings, units and housings
SAF 22617 x 2.7/8 TLC	73.025	-	-	Bearings, units and housings
SILQG 50 ES	50	-	50	Bearings, units and housings
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WS 81260	300		28.5	Bearings, units and housings

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Hot number： 16034 12551 23132 CC/W33 26625 344/332 6022 M 77996 C 2222 K D/W R6-2RZ D/W R8 R-2Z FY 1.3/8 TDW K 24x30x31 ZW SYE 3 7/16-18 W 61816 W 61901 R-2Z