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Style 590 Back-up Rings feature exceptional strength and abrasion resistance along with a 53 Shore D hardness rating which makes them suitable for high pressure service where extrusion is a problem. Primarily used as a u-seal back-up, these rings can be used with o-rings. They also retrofit urethane and PTFE back-up rings, with greater performance characteristics. “S” suffix designates a split ring.
53 Shore D Durometer | Hytrel Material | 2 13/16 in Nominal Inner Diameter | 7/32 in Cross Section | Backup Ring
Features
- High strength and abrasion resistance
- Wide temperature range
- Chemical resistance
- Low friction
- Easy installation
Wear rings provide a hard-wearing surface that protects the cylinder walls and the piston rod from scoring and abrasion. By maintaining alignment and reducing side loads, these rings facilitate smoother piston movement and lower friction levels.
Nylon Material | 1 3/4 in Nominal Inner Diameter | 1/8 in Cross Section | Wear Ring
Features
- Scarf Cut wear ring
- Protection Against Wear
- Reduced Friction
- Extended Cylinder Life
- Operational Efficiency
Caterpillar® part numbers are used as a reference only. We do not imply that these parts are original equipment parts.
3 1/2 in Nominal Inner Diameter | Piston Seal
DE-10 is a standard rod eye machined from Cast Iron.
A rod eye is a type of mount attached to the end of the cylinder rod. This connects to a mounting point on the machine and usually incorporates a bearing to allow for some movement.
1.75 in clevis pin with two 0.173 in holes that can be used to retain the pin with cotter pins or locking pins. Cotter pins not included.
Style HRU u-seals are precision molded from 80 Durometer Buna-N rubber. Sizes include those found in Army-Navy spec. AN6226 and narrow cross-section sizes found in J.I.C. cylinders and the popularly termed “Huva Cup”.
80A Durometer | Buna-N Rubber Material | 1 3/8 in Nominal Inner Diameter | 3/16 in Cross Section | U-Seal
Style HRU u-seals are precision molded from 80 Durometer Buna-N rubber. Sizes include those found in Army-Navy spec. AN6226 and narrow cross-section sizes found in J.I.C. cylinders and the popularly termed “Huva Cup”.
90A Durometer | Fluorocarbon Material | 2 in Nominal Inner Diameter | 3/16 in Cross Section | U-Seal
Style HRU u-seals are precision molded from 80 Durometer Buna-N rubber. Sizes include those found in Army-Navy spec. AN6226 and narrow cross-section sizes found in J.I.C. cylinders and the popularly termed “Huva Cup”.
80A Durometer | Buna-N Rubber Material | 2 1/2 in Nominal Inner Diameter | 7/32 in Cross Section | U-Seal
Suffix “V” designates fluorocarbon material,“N” designates nitrile material, and “HT” designates high temperature urethane.
90A Durometer | Urethane Material | 1 3/8 in Nominal Inner Diameter
Features
- Urethane Wiper Ring
- Min. Temperature Range of ‘-40 °F; N: -40°; V: -20 °F; HT: -40 °F
- Max. Temperature Range of 200 °F; N: 225 °F; V: 350 °F; HT: 225 °F
