Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF 308-2Z

308-2Z

Dimensions

d		40	mm
D		90	mm
B		23	mm
d₁	≈	56.11	mm
D₂	≈	77.7	mm
r_1,2	min.	1.5	mm

Abutment dimensions

d_a	min.	49	mm
d_a	max.	56	mm
D_a	max.	81	mm
r_a	max.	1.5	mm

Calculation data

Basic dynamic load rating	C	45.7	kN
Basic static load rating	C₀	36	kN
Fatigue load limit	P_u	1.53	kN
Reference speed		14000	r/min
Limiting speed		6800	r/min
Calculation factor	k_r	0.05

Mass

Mass bearing

0.64

Model Number: 308-2Z
Inner Diameter：40mm Outer Diameter：90mm Width：23mm
Reference speed:6800 r/min Limiting speed:14000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-07-23
Application:air purification,equipment,medical equipment,meat products machine,tower crane,Machine tools,small diesel generators,Hairbrush device,office equipment,test strip,air shower etc
Similar models:1308 ETN9 30308T72/DB 6308 NR SAF 1308 6308 N 6308-RS1 SNL 3080 ATURT BD-C 3080 KM-AOH 3080 G AOH 3084 G BS2-2308-2RS/VT143
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Model No. Inner Diameter Outer Diameter Width Type

30221
38.5x58x7 HMS5 RG
40x54x7 CRW1 R
530x576x21 HS8 R
53209 + U 209

Purchase the SKF 308-2Z Please fill in the following

Hot number： 331978 BG 51115 593894 71928 CD/HCP4AH1 7321 BEP 812/850 M C 4120 V/VE240 FYTB 40 TDW KD2-403 NATV 40 PPXA PCM 151715 E SAF 22224 SAF 22616 x 2.3/4 SAFS 22517 W 628/5-2RS1

Model No.	Inner Diameter	Outer Diameter	Width	Type
30221
38.5x58x7 HMS5 RG
40x54x7 CRW1 R
530x576x21 HS8 R
53209 + U 209