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Question:

What's the difference between the rubber cap and the iron cover of the deep groove ball bearings?

What's the difference between the rubber cap and the iron cover of the deep groove ball bearings?

Answer:

The rubber cover is a sealing ring, the iron cover is a dust cover, and the sealing ring has better dust proof and sealing property than the dust cover
Iron cover only dustproof, waterproof rubber cover, dustproof and waterproof
Outside the gear case, block the outer ring of the bearing or block the end cover of the bearing bore. It is called the bearing cap. The rubber cap and the iron cover of the bearings are more common,The role of bearing end cover is an axial fixed bearing, two is a sealed protection role, to prevent the bearings into the dust, etc., into the bearing, causing damage.The bearing end cover is fixed on the bearing seat or the bearing chamber, and if the shaft is fixed on the shaft, the sealing diameter is increased, and the sealing is difficult.Use bearing rubber cover for dust and sealing can be waterproof, but the friction speed is larger, and the iron cover is low, so the heat dissipation performance than iron cover; the plastic cover is divided into contact and no contact, but it is similar, there are differences of seal and friction on.The use of iron cover more, the main role is dust. Iron cover speed is higher, but because it is iron, so it is not waterproof

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