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 252 N2MA

QJ 252 N2MA

Dimensions

d		260	mm
D		480	mm
B		80	mm
d₁	≈	342	mm
D₁	≈	397	mm
a		259	mm
h		12.5	mm
b		15	mm
r₀		2.5	mm
r_1,2	min.	5	mm

Abutment dimensions

d_a	min.	282	mm
D_a	max.	458	mm
r_a	max.	4	mm

Calculation data

Basic dynamic load rating	C	728	kN
Basic static load rating	C₀	1430	kN
Fatigue load limit	P_u	32	kN
Limiting speed		2200	r/min
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

Model Number: QJ 252 N2MA
Inner Diameter：260mm Outer Diameter：480mm Width：80mm
Reference speed:2200 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:noise inspection,coal mill,supporting facilities,lifting tackle,pressure control valve,teaching equipment,Other machinery,rock drilling machinery,chuck industry,medical equipment,education model Instruments
Similar models:FSAF 22520 TLC BD-22252 CCK/W33-AOH 2252 G SSAFS 22526 x 4.5/16 TLC SSAFS 22528 TLC SSAFS 22524 x 4.1/8 FSAF 22520 x 3.3/8 T 22252 CCK/W33 SSAFS 22522 x 3.13/16 TLC SSAFS 22522 x 4 T SAFS 22520 TLC
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Model No.	Inner Diameter	Outer Diameter	Width	Type
14756	37.9984	59.9948	10.9982	Seals
11429	29.0068	45.0088	8.001	Seals
24176 ECA/W33	380	620	243	Bearings, units and housings
305288 DA	180	250	70	Bearings, units and housings
35x47x6 HMSA10 RG	35	47	6	Seals
403002	270	-	-	Seals
526192	469.9	-	-	Seals
55x68x8 HMSA10 RG	55	68	8	Seals
7509	19.05	34.93	6.35	Seals
LS 1528	15	28	2.75	Bearings, units and housings
N 1024 KTNHA/HC5SP	120	180	28	Bearings, units and housings
WBB1-8713	18	24	4	Bearings, units and housings

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Hot number： 1450 VL R 239/950 CA/W33 30x45x7 HMSA10 RG 32913 47896/47820 BT2B 334152/HA3 BD-C 2226 K-H 3126 L FY 1.15/16 WDW GEZH 400 ESX-2LS HME 3176 IR 17x22x16 NJ 2310 ECML NKI 42/20 PSM 303840 A51 SAF 1515 TLC