Bearings, units and housings -- Ball bearings -- Angular contact ball bearings -- Four-point contact ball bearings -- Angular contact ball bearings, four-point contact ball bearings SKF QJ 305 MA

QJ 305 MA

SKF Explorer

Dimensions

d		25	mm
D		62	mm
B		17	mm
d₁	≈	34	mm
D₁	≈	49	mm
a		30	mm
r_1,2	min.	1.1	mm

Abutment dimensions

d_a	min.	32	mm
D_a	max.	55	mm
r_a	max.	1	mm

Calculation data

Basic dynamic load rating	C	42.5	kN
Basic static load rating	C₀	30	kN
Fatigue load limit	P_u	1.27	kN
Limiting speed		20000	r/min
Calculation factor	A	2.776
Calculation factor	e	0.95
Calculation factor	X	0.6
Calculation factor	Y₀	0.58
Calculation factor	Y₁	0.66
Calculation factor	Y₂	1.07

Mass

Mass bearing

0.29

Model Number: QJ 305 MA
Inner Diameter：25mm Outer Diameter：62mm Width：17mm
Reference speed:20000 r/min Limiting speed:-
Type：Bearings, units and housings Ball bearings Angular contact ball bearings Four-point contact ball bearings
Details： Four-point contact ball bearings Angular contact ball bearings, four-point contact ball bearings
Update date：2026-04-16
Application:security equipment,Storage Tool,chemical raw materials and reagents,rock drilling machinery,gantry processing,trolley,casting embedding,other lathe,Industrial,plant determination,sawing machine
Similar models:305704 C-2Z 6305/VA201 SAFS 23056 KA x 10.1/2 6305-2Z/VA228 2305 E-2RS1TN9 305800 C-2RS1 32305 SAF 23056 KATLC x 10.7/16 PCM 30030550 E SNP 3056x10.1/2
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Model No.	Inner Diameter	Outer Diameter	Width	Type
275 VL V	247	-	-	Seals
29384	420	650	140	Bearings, units and housings
32011 X/DF	55	90	-	Bearings, units and housings
40x60x8 CRW1 R	40	60	8	Seals
527211	1193.8	-	-	Seals
91312	-	-	63.5	Seals
86907	-	-	38.1	Seals
BT2B 328130	260	480	-	Bearings, units and housings
FSAF 22520 x 3.3/8 T	85.725	-	-	Bearings, units and housings
GEH 100 ES-2RS	100	160	55	Bearings, units and housings
GEZM 112 ES	44.45	71.438	66.675	Bearings, units and housings
SILKAC 10 M	10	-	14	Bearings, units and housings

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