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 238 N2MA

QJ 238 N2MA

SKF Explorer

Dimensions

d		190	mm
D		340	mm
B		55	mm
d₁	≈	244	mm
D₁	≈	285	mm
a		185	mm
h		12.7	mm
b		10.5	mm
r₀		2	mm
r_1,2	min.	4	mm

Abutment dimensions

d_a	min.	207	mm
D_a	max.	323	mm
r_a	max.	3	mm

Calculation data

Basic dynamic load rating	C	510	kN
Basic static load rating	C₀	850	kN
Fatigue load limit	P_u	22.4	kN
Limiting speed		3200	r/min
Calculation factor	A	1770.64
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

23.3

Model Number: QJ 238 N2MA
Inner Diameter：190mm Outer Diameter：340mm Width：55mm
Reference speed:3200 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:tapered grinder,construction machinery and equipment,Anesthetic Equipment,packing equipment,internal combustion engine,bio-chemical,Industrial,Blood coagulation reagent,food safety,security equipment,surgical instruments
Similar models:238/850 CAKMA/W20 NU 238 ECM 22238 CC/W33 BD-C 2238 K-H 3138 238/850 CAMA/W20 NJ 238 ECM SAFS 22238 TLC 7238 BCBM K 81238 M 238/750 CAMA/W20
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Model No.	Inner Diameter	Outer Diameter	Width	Type
BD-23164 CCK/W33-OH 3164 H	300	540	176	Bearings, units and housings
23992 CAK/W33	460	620	118	Bearings, units and housings
319303	980	1310	-	Bearings, units and housings
30224	120	215	43.5	Bearings, units and housings
6308-2RSH	40	90	23	Bearings, units and housings
638/5-2Z	5	11	5	Bearings, units and housings
71912 ACD/HCP4A	60	85	13	Bearings, units and housings
IR 130x150x50	130	150	50	Bearings, units and housings
OH 3988 H	410	520	189	Bearings, units and housings
S7030 CD/P4A	150	225	35	Bearings, units and housings
SSAFS 22230 T	150	-	-	Bearings, units and housings
W 24	121.9454	164.3126	-	Bearings, units and housings

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Hot number： 12x37x7 HMSA10 RG 2600760 314756 314419 7222 BEP AOHX 32/600 G FSAF 22611 HH 224349/310 K 75x83x23 KMTA 26 L 814749/710 SAL 35 ES-2RS SNW 3128x5 SSAFS 22534 x 5.13/16 W 619/6 R-2RS1