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{"title":"Single Row NJ203 Bearing High Load 17x40x12 Roller Bearing Industrial \/ Textile","imgUrl":"https:\/\/img.chinax.com\/nimg\/79\/4c\/a540b8a58c0558a2dad6514116e4-200x200-1\/single_row_nj203_bearing_high_load_17x40x12_roller_bearing_industrial_2f_textile_use.jpg","attrs":{"Place of Origin":"CHINA","Payment Terms":"T\/T,Western Union,MoneyGram,PayPal","Model Number":"NJ203","Outer diameter":"40 mm"}}
RN311M Cylindrical Roller Bearing Metal Cage 2RS Sealed Bearings For Industrial / Mining
Product Overview
RN311M is a single-row cylindrical roller bearing with a metal cage (identified by the suffix "M"). It features high radial load capacity and low frictional resistance, making it suitable for industrial scenarios with high requirements for rotational speed and load.
Basic Parameters
Structural Design
Consists of an inner ring, outer ring, cylindrical rollers, and a stamped steel cage. Features double-sided rubber seals (2RS) for enhanced protection.
Dimensional Specifications
Parameter
Value
Inner Diameter
55mm
Outer Diameter
106.5mm
Width
29mm
Weight
Approximately 1.0kg
These dimensions comply with ISO 15 size series standard and fit common equipment installation spaces.
Material and Process
Bearing Steel: High-carbon chromium bearing steel (GCr15) with quenching and tempering treatment
Surface Hardness: HRC58-62 for excellent wear and impact resistance
Machining Precision: Raceway precision reaches class P5 with surface roughness Ra≤0.8μm
Performance Indicators
Load Capacity
Dynamic Radial Load: Approximately 105kN
Static Radial Load: Approximately 135kN
Can withstand moderate impact loads, suitable for heavy-load working conditions.
Rotational Speed Characteristics
Rotational Speed with Grease Lubrication: 4800r/min
Rotational Speed with Oil Lubrication: 6300r/min
Sealing and Lubrication
Standard Configuration: Double-sided rubber seal (2RS) with IP54 protection class
Introduction:1.Covering an area of 80 mu (about 53,333 square meters), our factory has a 60-person team including 4 professional engineers, ensuring stable production and technical support.
2. Focusing on bearing production for 25 years, quality is our only guarantee3. Wafangdian Bearing Factory was... Introduction:1.Covering an area of 80 mu (about 53,333 square meters), our factory has a 60-person team including 4 professional engineers, ensuring stable production and technical support.
2. Focusing on bearing production for 25 years, quality is our only guarantee3. Wafangdian Bearing Factory was...
