Bearings, units and housings -- Ball bearings -- Angular contact ball bearings -- Double row angular contact ball bearings -- Angular contact ball bearings, double row SKF 305272 D

305272 D

Dimensions

d		220	mm
D		309.5	mm
B		76	mm
d₁	≈	252.5	mm
D₁	≈	286	mm
b		22	mm
K		7.5	mm
r_1,2	min.	2.1	mm
a		146	mm

Abutment dimensions

d_a	min.	225	mm
D_a	max.	284	mm
r_a	max.	2.1	mm

Calculation data

Basic dynamic load rating	C	312	kN
Basic static load rating	C₀	520	kN
Fatigue load limit	P_u	13.4	kN
Reference speed		1700	r/min
Limiting speed		2000	r/min
Calculation factor	k_r	0.095
Calculation factor	e	0.86
Calculation factor	X	0.62
Calculation factor	Y₀	0.63
Calculation factor	Y₁	0.73
Calculation factor	Y₂	1.17

Mass

Mass bearing

17.6

Model Number: 305272 D
Inner Diameter：220mm Outer Diameter：309.5mm Width：76mm
Reference speed:2000 r/min Limiting speed:1700 r/min
Type：Bearings, units and housings Ball bearings Angular contact ball bearings Double row angular contact ball bearings
Details： Double row angular contact ball bearings Angular contact ball bearings, double row
Update date：2026-04-16
Application:chuck industry,Industry,Tool,pressure control valve,directional control valve,EEG,Polymer,noise reduction equipment,Doppler,electrostatic protection,Pump
Similar models:305272 DB 305272 DA 305272 D
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Model No.	Inner Diameter	Outer Diameter	Width	Type
12x28x7 HMS5 RG	12	28	7	Seals
145x175x14 CRS1 R	145	175	14	Seals
17277	44.45	60.3	6.35	Seals
25x37x6 HMS5 RG	25	37	6	Seals
30x46x7 HMS5 V	30	46	7	Seals
TDI design	501.65	711.2	-	Bearings, units and housings
53309 + U 309	45	85	30.1	Bearings, units and housings
61930 MA	150	210	28	Bearings, units and housings
81218 TN	90	135	35	Bearings, units and housings
PSM 061206 A51	6	12	6	Bearings, units and housings
SAW 23536 x 6.3/8 T	161.925	-	-	Bearings, units and housings
SSAFS 22528 TLC	125.4125	-	-	Bearings, units and housings

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Hot number： 332313 404003 60/560 N1MAS 71800 ACD/HCP4 71901 CD/HCP4A K 55x60x20 N 38/630 MB NUP 306 ECML PCMS 2005002.0 E PRM 202330 PSM 101610 A51 RNA 4915 RNU 304 SAF 22538 x 7 SAF 22624 x 4.1/8 T