Rolling mill double lip seal

The double lip seal is double duty: Seal the lubricating oil in the bearing cavity to ensure the formation of a continuous oil film (the oil film plays a bearing role and bears the weight of the roll and the working load of the rolling mill). Seal the external cooling water, rolling oil, iron filings, dust and other sundries to prevent them from infiltrating into the bearing cavity, avoid the contamination and failure of the lubricating oil in the cavity and cause the bearing to burn out, and maintain the normal operation of the bearing.

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rolling the is mill oil and 17 speed of morgen

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Rolling mill double lip seal

The double lip seal is double duty:
Seal the lubricating oil in the bearing cavity to ensure the formation of a continuous oil film (the oil film plays a bearing role and bears the weight of the roll and the working load of the rolling mill).
Seal the external cooling water, rolling oil, iron filings, dust and other sundries to prevent them from infiltrating into the bearing cavity, avoid the contamination and failure of the lubricating oil in the cavity and cause the bearing to burn out, and maintain the normal operation of the bearing.

Double lip seals-spec models

JW drawing number	Model	Specifications
153772	SMS Mill	7403871
153773	SMS Mill	7403872
170811	MORGEN Mill	10085300
163916	MORGEN Mill	10008534
158229	MORGEN Mill	430488A
163917	MORGEN Mill	10008484
177176	MORGEN Mill	10262113
171729	MORGEN Mill	10089630

Order number	SMS/Morgan number	Specification (mm)
170811	10085300	101.7×117×17
163916	10008534	105.7×121×17
153772	7403871	110.2×126×17
158229	430488A	120.2×136×17
163917	10008484	144.7×160×17
153773	7403872	150.2×166×17
177176	10262113	161×176.55×17
171729	10089630	170×193.73×24.75

In the actual production process of high-speed wire rod, the rolling speed is high, usually the lip line speed is 80-160 m/s, that is, the rotation speed is 13000rpm. This has a stricter requirement on the performance of the seal. The working environment is roughly as follows:
Rotational speed: The lip line speed is 80-160m/s (finishing mill), that is, the rotation speed is 13000rpm, and the output speed is 100m/s.
Oil temperature: 38～45℃.
Medium: oil film bearing oil (such as Mobil 525, 533, etc.), water and external iron oxide filings.
Oil pressure: 0.24～0.4Mpa.
The double lip seal material must meet the following performance requirements. (Note: According to the actual production situation, hydrogenated nitrile is a better choice.)

items	Monitoring method	Elastomer performance indicators
Hardness	GB/T531-92	75±3
Tear strength	GB/T531-92	≥14Mpa
Elongation at break	GB/T531-92	≥250%
Compression Set	GB/T531-92	≤28%
Oil resistance:

None

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The main professional processing equipment includes flat vulcanizer, injection molding machine, rubber and plastic pressurized kneader, rotorless vulcanizer, tensile testing machine...

Hengshui Hongjia Rubber Products Co., Ltd.

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