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：2026-04-19
Application:plastic rolling,pump,Cylinder Standard,packaging materials,inorganic chemical,fabric products,Cutting Machine,aerial work equipment,nail products,machine lathe,journal lathe
Similar models:HJ 312 EC 21312 EK BD-21312 EK-H 312 GEZM 312 ES 1312 ETN9 23122 CC/W33 BD-C 2228 K-AHX 3128 22312 E BD-22212 EK-H 312 NU 312 ECM/HC5C3
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Model No.	Inner Diameter	Outer Diameter	Width	Type
17847	45.2374	69.85	12.7	Seals
1900 VA R	1720	-	-	Seals
26163	66.675	88.42	11.13	Seals
33118	90	150	45	Bearings, units and housings
7334 BCBM	170	360	72	Bearings, units and housings
71906 ACD/HCP4A	30	47	9	Bearings, units and housings
87143	-	-	30	Seals
AXW 15	15	31	2	Bearings, units and housings
GE 17 C	17	30	10	Bearings, units and housings
N 30/1320 MB	1320	1850	400	Bearings, units and housings
NF 28/1060 ECM/HB1	1060	1280	128	Bearings, units and housings
S71920 CB/HCP4A	100	140	20	Bearings, units and housings

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