SKF Ball Bearing, 55mm Inside Diameter, 120mm Outside Diameter - 6311-2RS1/C3

This ball bearing is a single row deep groove type designed for versatile applications across various industries. Featuring a 55mm inside diameter and 120mm outside diameter, it offers a 29mm race width. The sealing arrangement on both sides ensures durability and reduces the need for maintenance, making it ideal for operations requiring high rotational speeds.

Features & Benefits

• Integral sealing keeps lubricant in and contaminants out

• Low friction design enhances high-speed capability

• Accommodates radial and axial loads in both directions

• C3 clearance ensures appropriate space for thermal expansion

• Simplified installation and minimal maintenance requirements

• Steel material construction for added strength and longevity

Applications

• Used in machinery requiring low friction and quiet operation

• Ideal for electrical and automated production equipment

• Suitable for that involve radial and axial loads

• Employed in mechanical systems demanding long service life

• Utilised in various types of industrial machinery and vehicles

What types of loads can this bearing accommodate?

The bearing is designed to handle both radial and axial loads, allowing it to perform efficiently in diverse applications.

What is the significance of the C3 clearance in this bearing?

The C3 clearance provides additional spacing that permits thermal expansion, ensuring optimal performance even at elevated temperatures.

How can the sealing arrangement impact maintenance requirements?

The sealing arrangement effectively keeps lubricant contained and prevents the entry of contaminants, which significantly reduces the frequency of maintenance.

What performance specifications should I consider when using this bearing?

Consider the basic dynamic load rating of 74.1 kN and static load rating of 45 kN, along with the recommended speeds of 12,000 r/min and 3,800 r/min for optimal operation.

What material composition contributes to the durability of this bearing?

With a steel construction for both the bearing and balls, along with a sheet metal cage, the bearing is designed for enhanced durability and wear resistance.

Units	Per unit
1 - 4	£58.39
5 - 9	£56.05
10 - 24	£54.88
25 +	£53.71

Select all	Attribute	Value
	Brand	SKF
	Inside Diameter	55 mm
	Product Type	Ball Bearing
	Outside Diameter	120 mm
	Race Width	29mm
	Ball Material	Steel
	Cage Material	Sheet Metal
	End Type	Sealed
	Number of Rows	1
	Internal Clearance	C3
	Static Load Rating	45kN
	Dynamic Load Rating	74.1kN
	Standards/Approvals	No
	Bore Type	Parallel
	Limiting Speed	3800rpm
	Bearing Type	Single Row Deep Groove Ball
	Race Type	Plain

	Select all
	Brand SKF
	Inside Diameter 55 mm
	Product Type Ball Bearing
	Outside Diameter 120 mm
	Race Width 29mm
	Ball Material Steel
	Cage Material Sheet Metal
	End Type Sealed
	Number of Rows 1
	Internal Clearance C3
	Static Load Rating 45kN
	Dynamic Load Rating 74.1kN
	Standards/Approvals No
	Bore Type Parallel
	Limiting Speed 3800rpm
	Bearing Type Single Row Deep Groove Ball
	Race Type Plain

SKF 6311-2RS1/C3 1 Row Ball Bearing - 55 mm ID, 120 mm OD

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