Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF 312-2ZNR

312-2ZNR

Dimensions

d		60	mm
D		130	mm
B		31	mm
d₁	≈	81.86	mm
D₂	≈	112.2	mm
D₃		125.22	mm
D₄		139.7	mm
b		3.1	mm
C		4.06	mm
f		2.82	mm
r₀	max.	0.6	mm
r_1,2	min.	2.1	mm

Abutment dimensions

d_a	min.	72	mm
d_a	max.	81.7	mm
D_a	max.	118	mm
D_b	min.	141	mm
b_a	min.	3.5	mm
C_a	max.	6.88	mm
r_a	max.	2	mm

Calculation data

Basic dynamic load rating	C	91.3	kN
Basic static load rating	C₀	78	kN
Fatigue load limit	P_u	3.35	kN
Reference speed		9500	r/min
Limiting speed		4800	r/min
Calculation factor	k_r	0.05

Mass

Mass bearing

1.85

Included products

Snap ring

SP 130

Model Number: 312-2ZNR
Inner Diameter：60mm Outer Diameter：130mm Width：31mm
Reference speed:4800 r/min Limiting speed:9500 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2025-12-09
Application:switch,Leather Products,meat products machine,EEG,pump,hydraulic actuator,other processing,decoration machinery,boring bar boring bar,scientific instruments,Other Measurements
Similar models:30312 NJ 2312 ECP FSAF 22312 H 3122 E 312966 D BD-22224 EK-H 3124 BD-23124 CCK/W33-H 3124 1312 ETN9 21312 E 312980 D
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