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Believe Rotary Shaft Seals Have High Requirements For Shaft Precision And Surface Roughness
2025-12-16
Mechanical seals have high requirements for shaft (or bushing) installation precision and surface roughness. Radial runout and axial movement of the shaft should be controlled within a small range; otherwise, it will affect the sealing surface fit, leading to seal failure or shortened lifespan.
Packing seals have relatively low requirements for shaft (or shaft sleeve) precision and surface roughness. Even with some shaft wear or eccentricity, the elastic deformation of the packing can still achieve a certain degree of sealing.
The rotating ring of the Believe rotary shaft seal is integrated with the shaft and can tolerate radial runout of 2-3 mm. The double-end cooling flow channel of the housing effectively controls the material-to-shaft precision to ±50 microns, primarily through soft silicone holding the shaft end in place. No surface roughness requirements are placed on the shaft.
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Believe Rotary Shaft Seal Power Consumption
Believe rotary shaft seals have low power consumption because the shaft and rotating ring are integrated, rubbing against the housing and stationary ring. The housing undergoes DLC treatment with a mirror finish of 0.1-0.2, significantly reducing friction.
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Believe Rotary Shaft Seal Costs
Believe rotary shaft seals have a higher initial purchase cost and a longer manufacturing cycle. However, they offer lower maintenance costs and cheaper wear parts, ensuring customers reduce maintenance expenses in the long run.
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Believe Rotary Shaft Seal Applications
Believe rotary shaft seals are suitable for low-speed shaft-end mixing and kneading equipment. For equipment or materials with high temperatures, a double-end cooling version can be used for low-speed equipment.
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Believe Rotary Shaft Seal Installation and Maintenance
Believe rotary shaft seals can be manufactured in a fully modular form, simplifying installation and maintenance. Subsequent replacement of wear parts does not require disassembling the gearbox and bearings, reducing downtime and improving production efficiency.
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Believe Rotary Shaft Seal Friction Power Consumption
The rotating ring of the Believe rotary shaft seal is integrated with the shaft and can tolerate radial runout of 2-3 mm. The double-end cooling channels on the outer shell effectively control the temperature transfer from the hopper and the temperature rise from dry friction.
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Believe Rotary Shaft Seal Sealing Performance
Believe rotary shaft seals offer superior sealing performance. Due to their triple-seal design, they provide excellent sealing for powders, liquids, and slurries. They guarantee zero leakage during operation, reducing the risk of unexpected downtime and increasing production capacity.
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Believe Rotary Shaft Seal Sealing Principle
Believe rotary shaft seals have three seals. The first is a radial seal, where silicone grips the shaft end to prevent material leakage (both end faces have radial seals). The second is an air seal, where the pressure in the sealing cavity is greater than the pressure in the hopper, preventing material from entering the sealing cavity.
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Believe Automation Technology Co., Ltd.Rotary Shaft Seal Applicable Equipment and Operating Conditions BL-80-DJL
BL-80-D, BL-80-DJ, BL-80-DL, BL-80-DJL. BL represents the rotary shaft seal manufactured by Believe, and 80 is the shaft diameter. For example, if the shaft diameter is 80, the model should be BL-80-D. The suffixes D, DJ, DL, and DJL indicate the sealing structure type.
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Believe Automation Technology Co., Ltd.Rotary Shaft Seal Applicable Equipment and Operating Conditions BL-70-DL
BL-70-D, BL-70-DJ, BL-70-DL, BL-70-DJL. BL represents the rotary shaft seal manufactured by Believe, and 70 is the shaft diameter. For example, if the shaft diameter is 70, the model should be BL-70-D. The suffixes D, DJ, DL, and DJL indicate the sealing structure type.
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Believe Automation Technology Co., Ltd.Rotary Shaft Seal Applicable Equipment and Operating Conditions BL-60-DJ
BL-60-D, BL-60-DJ, BL-60-DL, BL-60DJL. BL represents the rotary shaft seal manufactured by Believe, and 60 is the shaft diameter. For example, if the shaft diameter is 60, the model should be BL-60-D. The suffixes D, DJ, DL, and DJL indicate the sealing structure type.
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Believe Automation Technology Co., Ltd.Rotary Shaft Seal Applicable Equipment and Operating Conditions BL-50-D
BL-50-D, BL-50-DJ, BL-50-DL, BL-50-DJL. BL represents the rotary shaft seal manufactured by Believe, and 50 is the shaft diameter. For example, if the shaft diameter is 50, the model should be BL-50-D. The suffixes D, DJ, DL, and DJL indicate the sealing structure type.
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