Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7228 CD/P4A

7228 CD/P4A

Dimensions

d		140	mm
D		250	mm
B		42	mm
d₁		176.8	mm
d₂		176.8	mm
D₁		213.2	mm
r_1,2	min.	3	mm
r_3,4	min.	1.5	mm
a		47.3	mm

Abutment dimensions

d_a	min.	154	mm
d_b	min.	154	mm
D_a	max.	236	mm
D_b	max.	241	mm
r_a	max.	2.5	mm
r_b	max.	1.5	mm
d_n		184.8	mm

Calculation data

Basic dynamic load rating	C	221	kN
Basic static load rating	C₀	240	kN
Fatigue load limit	P_u	7.35	kN
Attainable speed for grease lubrication		5600	r/min
Attainable speed for oil-air lubrication		8500	r/min
Ball diameter	D_w	30.162	mm
Number of balls	z	18
Reference grease quantity	G_ref	83.931	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	850	N
Static axial stiffness, preload class A		163	N/µm
Preload class B	G_B	1700	N
Static axial stiffness, preload class B		220	N/µm
Preload class C	G_C	3400	N
Static axial stiffness, preload class C		305	N/µm
Preload class D	G_D	6800	N
Static axial stiffness, preload class D		437	N/µm
Calculation factors
Calculation factor	f	1.09
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.01
Calculation factor	f_2C	1.03
Calculation factor	f_2D	1.05
Calculation factor	f_HC	1
Calculation factor	f₀	15.2

Mass

Mass bearing

8.14

Model Number: 7228 CD/P4A
Inner Diameter：140mm Outer Diameter：250mm Width：42mm
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:car and accessories,X-ray Equipment,other mold,suction nozzle,security,Forming mold,Oral Equipment,Pneumatic Actuator,medical equipment,Forklift industry,garbage disposal
Similar models:7228 CD/P4A 7228 BGAM 7228 ACD/HCP4A 7228 ACD/P4A 7228 CD/HCP4A 7228 BM 7228 BCBM
BEARING POWER International Trading Co.,Ltd. specialize in 7228CD/P4A products，there is large inventory of SKF 7228 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 7228 CD/P4A Which SKF 7228CD/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
140x160x12 CRW1 R	140	160	12	Seals
27576	69.85	104.78	11.13	Seals
30 VA R	27	-	-	Seals
305264 D	230	329.5	80	Bearings, units and housings
51109 V/HR22T2	45	65	14	Bearings, units and housings
6203-2RSL	17	40	12	Bearings, units and housings
AH 2238 G	180	190	112	Bearings, units and housings
BT4B 331226/HA1	431.8	571.5	-	Bearings, units and housings
D/W R12	19.05	41.275	7.938	Bearings, units and housings
SIKAC 6 M	6	-	9	Bearings, units and housings
SD 22x28x4	22	28	4	Seals
SNL 3096 TURT	450	-	-	Bearings, units and housings

Purchase the SKF 7228 CD/P4A Please fill in the following

Hot number： 230x260x15 HMS5 RG 23169 38x52x7 HMS5 RG 48x62x8 CRW1 R 6216 NR 7406 BCBM 90886 99289 D/W R188-2RS1 FYR 1 11/16-3 GRA 3038 LS 4565 NJ 1024 ML NU 19/850 ECMA/HA1 SNW 8x1.5/16