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QJ 311 MA

QJ 311 MA Bearing is characterized by a unique design where a single row of balls engages with four points of contact on the raceways (two inner and two outer points).

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QJ 311 MA

Categories:

Angular contact ball bearings

WhatsApp:

+8618063585252

Email:

jyoo@jyoobearing.com

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Delivery Time

10-15 days after receiving payment

Delivery Method

Send in the best possible way

Adequate inventory

Provide customers with more than 100,000 types of bearings

PRODUCT DESCRIPTION

Design Features of QJ 311 MA Bearing

QJ 311 MA Bearing is characterized by a unique design where a single row of balls engages with four points of contact on the raceways (two inner and two outer points). This configuration forms an angular contact that allows the bearing to support axial loads from both directions. QJ 311 MA bore dia is 55 mm. Its out dia is 120 mm. QJ 311 MA width is 29 mm. It provides a balance of load handling, space utilization, and performance.

What Benefits Can QJ 311 MA Bearing Provide?

Axial Load Handling: Capable of supporting significant axial loads in both directions, ideal for applications requiring bidirectional axial load support.
Compact Design: Combines the functionality of double-row bearings in a more compact form, saving space in assembly.
Radial Load Capacity: Efficiently handles radial loads, providing versatility in various mechanical setups.
Precision and Stability: Offers high precision and stability in operation, essential for applications requiring accurate rotational movement.
Space Efficiency: Ideal for applications with limited space, delivering robust performance without the need for larger bearing arrangements.

What Can QJ 311 MA Bearing Be Used for?

QJ 311 MA Bearing is utilized in applications that demand robust axial and radial load support within a compact design. Key uses include:

Turntables and Indexing Tables: For precise and stable rotation under combined loads.

Steering Systems: In automotive and marine applications for efficient steering control.

Industrial Machinery: In gearboxes and drives where space efficiency and load capacity are crucial.

Cranes and Hoists: Providing reliable performance under heavy loads in lifting equipment.

Rotary Tables: In machine tools for precise positioning and movement.

Part Number	QJ 311 MA
System of Measurement	Metric
Bearing Type	Ball
For Load Direction	Four Point Contact
Construction	Single Row
Seal Type	Open
Chamfer Dimension	2 mm
Distance Pressure Point (a)	61 mm
Bore Dia	55 mm
Bore Dia Tolerance	-0.012mm to 0
Outer Dia	120 mm
Outer Dia Tolerance	-0.013mm to 0
Width	29 mm
Width Tolerance	-0.05mm to 0
External Diameter On Inner Ring (Large Side Face)	70.5 mm
Internal Diameter On Outer Ring	97.8 mm
Dynamic Radial Load	30825 lbf
Static Radial Load	26550 lbf
Max Speed (X1000 rpm)	10
Ring Material	Chrome Steel
Ball Material	Chrome Steel
Cage Material	Brass
Lubrication	Lubricated
Temperature Range	-30° to 110 °C
Tolerance Class	P6 (ABEC-3)
RoHS	Compliant
REACH	Compliant
Weight	1.75 kg

ABOUT US

Production and sales of various ball bearings, roller bearings, automobile bearings, linear bearings, needle roller bearings, non-standard bearings, etc.

500 +

Partner Suppliers

100000

Bearing Model

PACKING AND DELIVERY

QUALIFICATIONS

The company fully implements the ISO9000 comprehensive quality management system, and its products have become serialized, large-scale and professional.

NSK

ISO

FAG

ISO

FYH

NTN

FAQ

What’s your after-sales service and warranty?

We promise to bear the following responsibility when defective product is found:
1. 12 months warranty from the first day of receiving goods;
2. Replacements would be sent with goods of your next order;
3. Refund for defective products if customers require.

How does your factory do regarding to quality control?

Quality is priority, we always attach great importance to quality control from the beginning to the end of production. We conform with high quality standards strictly and have professional Q/C staff, precision testing instruments and internal inspection system, the quality control is implemented in every process from material receiving to products packaging to ensure our bearings quality.

What’s your main products?

Our main products include all kinds of ball bearings and roller bearings and also world-famous brand bearings.

Do you offer free samples?

Yes we offer free samples to distributors and wholesalers, however customers should bear freight.

How long is the lead time?

The lead time for sample orders is 3-5 days, for bulk orders is 5-15 days.

Do you accept ODM&OEM orders?

Yes, we provide ODM&OEM services to worldwide customers, we are able to customize bearings in different styles, and sizes in different brands.

Angular contact ball bearings