2218 Double Row Self-Aligning Ball Bearings, Spherical Roller Bearings, Self-Aligning Series

Double row self-aligning 2218

2218 self-aligning ball bearing

Self-aligning double row 2218

Double row self-aligning ball bearings 2218

The 2218 self-aligning ball bearing features double row self-aligning design for misalignment compensation. This Self-aligning double row 2218 model delivers high load capacity, durability, and smooth operation in demanding industrial applications.

Specification

SEODescription

The Double row self-aligning ball bearings 2218 (2218 self-aligning ball bearing) features a robust design with two rows of balls and a spherical outer ring raceway, enabling ±3° angular misalignment compensation. With a bore diameter of 90mm, outer diameter of 160mm, and width of 40mm, this Self-aligning double row 2218 model handles radial loads up to 65kN dynamically and 30kN statically, operating at maximum speeds of 4,800 rpm under oil lubrication. Its sealed variants support -30°C to +120°C operation, ideal for heavy machinery, conveyor systems, and agricultural equipment where shaft deflection occurs. The double-row configuration enhances load capacity while maintaining self-alignment advantages, though requires precise axial preload adjustment. Key benefits include vibration damping and reduced edge stress, but may exhibit slightly higher friction than single-row alternatives in high-speed applications.

SEOSpecification

Parameter	Specification
Model Designation	Double row self-aligning 2218
Bearing Type	2218 self-aligning ball bearing
Configuration	Self-aligning double row 2218
Bore Diameter (d)	90 mm
Outer Diameter (D)	160 mm
Width (B)	40 mm
Dynamic Load Capacity (C)	108 kN
Static Load Capacity (C₀)	53 kN
Maximum Speed (Grease)	3400 rpm
Weight	3.2 kg
Cage Material	Pressed Steel
Sealing Type	Open/ZZ/2RS (Optional)
Operating Temperature	-30°C to +120°C
Lubrication	Grease or Oil
Alignment Capability	±3°
Standards	ISO 15:2017, DIN 630
Applications	Heavy machinery, agricultural equipment, conveyor systems

SEOQandA

question:Do you provide technical selection services?
answer:Yes, we offer technical selection services to help you choose the most suitable products for your needs.
question:Can you share shipment photos and procurement dates for similar products?
answer:Yes, we can provide shipment photos and procurement dates under a confidentiality agreement upon request.
question:Do you offer customization or OEM services?
answer:Yes, we provide customization and OEM services tailored to your specific requirements and branding.

SEOQandA_Product

question:Incorrect installation causing bearing damage?
answer:Use proper installation tools and apply uniform pressure on the rings.
question:Insufficient or excessive lubrication affecting performance?
answer:Follow manufacturer's guidelines for proper lubrication type and quantity.
question:Excessive vibration due to misalignment?
answer:Verify shaft and housing alignment; utilize self-aligning feature correctly.
question:Overloading leading to premature failure?
answer:Ensure applied load does not exceed bearing's dynamic load rating.
question:Contamination causing wear or noise?
answer:Seal bearing housing effectively and maintain clean operating environment.