Hallite 520 Wiper
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Designed to have interference in the seal housing groove and has a secondary lip. The secondary sealing lip located behind the primary sealing lip improves stability of the seal in the gland.
The inner dynamic lip is shorter and more robust to improve sealing and compression set characteristics over conventional, symmetrical U-seals.
The seal can be considered for use in heavy-duty applications when used with a suitable full depth back-up ring. The sealing lips are precision trimmed at an angle to give optimal rod sealing performance.
The PA 533 material is heat stabilised 33% glass reinforced nylon 66, which offers excellent bearing properties.
Compatible with hydraulic and lubricating oils. The PA 533 material is not recommended for use in water based fluids (HFA) or where significant water is present, due to the swell of the nylon.
RB, 3/4 X 1.030 X 0.126 Buffer NBR
Hallite 520 Wiper
Style ST-XL wipers are molded from premium urethane and are direct replacements for Style “ST” or “D” wipers. The outside diameter of the ring has a crush lip providing extra interference in the groove. A bead on the shoulder stops contaminates from entering through the groove. The inside diameter is ribbed to prevent pressure traps between the wiper and rod seal.
94A Durometer | Urethane Material | 3/4 in Nominal Inner Diameter
Features
- Crush lip to provide extra interference
- Bead on the shoulder to keep contaminants out
- Ribbed ID to prevent pressure traps
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Item Specifications
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94A
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0.187 Inch
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+0.004, +0.000
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1.122 Inch
-
+0.006, +0.000
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Hallite
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Urethane
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230 °F
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-40 °F
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3/16 Inch
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3/4 Inch
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1 1/8 Inch
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0.75 Inch
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-0.0008, -0.0028
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ST-XL
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5 Years
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3 ft/sec
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ST-XL
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0.995 Inch
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+0.010, +0.000
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Extra Lip
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inch
-
0.00 lbs per EA
View Related Items
Designed to have interference in the seal housing groove and has a secondary lip. The secondary sealing lip located behind the primary sealing lip improves stability of the seal in the gland.
The inner dynamic lip is shorter and more robust to improve sealing and compression set characteristics over conventional, symmetrical U-seals.
The seal can be considered for use in heavy-duty applications when used with a suitable full depth back-up ring. The sealing lips are precision trimmed at an angle to give optimal rod sealing performance.
The PA 533 material is heat stabilised 33% glass reinforced nylon 66, which offers excellent bearing properties.
Compatible with hydraulic and lubricating oils. The PA 533 material is not recommended for use in water based fluids (HFA) or where significant water is present, due to the swell of the nylon.
RB, 3/4 X 1.030 X 0.126 Buffer NBR
