QJ1056-MPA

d	280 mm	Bore diameter
D	420 mm	Outside diameter
B	65 mm	Width
Cr	560,000 N	Basic dynamic load rating, radial
C0r	1,090,000 N	Basic static load rating, radial
Cur	32,000 N	Fatigue load limit, radial
nG	2,600 1/min	Limiting speed
nϑr	1,240 1/min	Reference speed
≈m	33.8 kg	Weight

 

da min	294.6 mm	Minimum diameter shaft shoulder
Da max	405.4 mm	Maximum diameter of housing shoulder
ra max	3 mm	Maximum fillet radius

 

rmin	4 mm	Minimum chamfer dimension
D1	373 mm	Shoulder diameter outer ring
d1	329.3 mm	Shoulder diameter inner ring
a	245.1 mm	Distance between the apexes of the pressure cones
α	35 °	Contact angle

 

Tmin	-30 °C	Operating temperature min.
Tmax	200 °C	Operating temperature max.

QJ1056-MPA is a high-performance four-point contact ball bearing with a unique design that enables it to simultaneously carry axial loads in both directions while also supporting moderate radial loads. The "QJ" prefix indicates the four-point contact ball bearing series, while "1056" indicates specific inner and outer diameter dimensions, "10" represents the inner diameter in millimeters (50mm), and "56" represents the outer diameter (280mm). The "-MPA" suffix highlights additional features, enhanced material durability and precision manufacturing processes for outstanding performance.

QJ1056-MPA is manufactured from high-quality steel and undergoes stringent quality control measures throughout the production process. Each bearing meets strict industry standards, including dimensional accuracy, surface finish, and load-bearing capacity. The application of advanced heat treatment technology further improves the hardness and wear resistance of the bearing.

Inventory management for QJ1056-MPA is strategically optimized to meet the needs of domestic and international markets. Our state-of-the-art logistics system ensures timely delivery, whether the order is for a single piece or batch. We maintain a comprehensive inventory of this bearing, as well as other models in the QJ series, to provide customers with seamless access to our products. Regular inventory audits and forecast analysis help us predict market trends and adjust stock levels accordingly, minimizing lead times and ensuring availability.

We also utilize digital marketing channels, including social media, industry-specific forums, and targeted email campaigns to reach potential customers. We are committed to serving our customers and ensuring users have the knowledge and resources they need to maximize the benefits of the QJ1056-MPA.

NO.	d[mm]	D[mm]	B[mm]
QJ1252-N2-MPA-C3	260	480	90
QJ252-N2-MPA	260	480	80
QJ252-N2-MPA-C3	260	480	80
QJ1252-N2-MPA	260	480	90
QJ1972-N2-MPA	360	480	56
QJ344-N2-MPA	220	460	88
QJ344-N2-MPA-C3	220	460	88
QJ1060-MPA	300	460	74
QJ1060-N2-MPA-C3	300	460	74
QJ1060-N2-MPA	300	460	74
QJ1248-N2-MPA	240	440	85
QJ1248-MPA	240	440	85
QJ248-N2-MPA	240	440	72
QJ248-N2-MPA-C3	240	440	72
QJ340-N2-MPA	200	420	80
QJ1056-MPA	280	420	65
QJ340-N2-MPA-C3	200	420	80
QJ1056-N2-MPA	280	420	65
QJ1056-N2-MPA-C4	280	420	65
QJ244-N2-MPA	220	400	65

 

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