QJ 215 MA
Four-Point Contact Bearings Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
QJ 215 MA
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.45 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Four Point Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.015mm to 0
Width
25 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
1.5 mm
Distance from side face to load point
72 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
88.5 mm
Outer Ring Dimensions
Shoulder diameter outer ring
112 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
28125 lbf
Radial static load rating
29700 lbf
Limiting speed
8.5 X 1000 rpm
Lubrication
Lubricated
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Brass
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
QJ 215 MA Bearing Product Overview & Core Advantages
The QJ 215 MA is a high-precision metric single row four-point contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and load handling capabilities. This bearing is specifically designed to simultaneously accommodate combined radial and axial loads from both directions, making it an ideal solution for compact spaces where high rigidity and precise motion control are paramount. Manufactured to a P6 (ABEC-3) tolerance class, it delivers superior running accuracy and reliability for high-performance machinery.
QJ 215 MA Bearing Model Code Explained, Specifications & Naming Convention
The QJ 215 MA model designation provides detailed technical specifications:
- QJ 2: Denotes the four-point contact ball bearing series.
- 15: Indicates the bore diameter code (15 x 5 mm = 75 mm bore).
- MA: Specifies a brass cage and pre-lubrication, contributing to high-speed capability and immediate operational readiness.
QJ 215 MA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The optimized four-point contact design and robust chrome steel construction enable the bearing to handle significant radial dynamic load ratings of 28,125 lbf and static load ratings of 29,700 lbf, providing stable support under complex loading conditions.
- Precision & Speed: With a P6 tolerance class and a brass cage (MA), the bearing achieves smooth operation and a high limiting speed of 8,500 rpm, making it suitable for high-speed applications.
- Ready-to-Use & Durable: The bearing comes pre-lubricated and features an open seal type, allowing for easy re-lubrication in service. The high-quality materials ensure a long service life within a wide operating temperature range of -30°C to 110°C.
QJ 215 MA Bearing Typical Application Areas
This precision bearing is ideally suited for applications requiring high accuracy and robust load support, including:
- Machine Tool Spindles and rotary tables
- Industrial Robots and automation equipment
- Gearboxes and power transmission systems
- Precision Medical Equipment
- High-performance Pumps and Compressors
