GBR Rod Seals

Function and Usage
GBR Rod Seal is a compact seal which are made of high strength polyurethane used together with the back up ring. The special structure can adopt to working under most of the harsh working condition. Under extreme conditions, the impulse pressure of the cylinder can reach to 100MPa, and the GBR used as a buffer seal can separate the main seal from the load.. With the using of the back up ring, the resistance to extrusion is more perfect.
 
Advantage
--Wear resistance, long service life
--Impact resistance, pressure peak resistance
--Anti extrusion
--Compression deformation is small
--Suitable for harsh working conditions
-- Easy to install
 
Material
Standard usage
Sealing Body Material: polyurethane  Our Material Code: P903
Back Up Material:POM  Our Material Code: S805
 
Technical Data
The Standard GBR Rod Seal is mainly used for the hydraulic cylinder for walking equipment.
Working Pressure: ≤50MPa (Pressure peak value is 100MPa)
Speed: ≤0.5m/s  
Working Temperature：-35℃ to +110℃ 
Working Medium: Mineral hydraulic oil, emulsion, water and other media
 
Clearance

Working Pressure（MPa）	35	40	50
Radial Clearance E（mm）	≤0.4	≤0.2	≤0.1

 
Tips: Limit value of the above data, can not be used at the same time. The maximum working pressure depends on the type of material, the pressure, the temperature, the gap, and etc.. In actual usage, due to the mutual influence of working parameters, the maximum value setting is lower.
 
Installation
Groove: Both Closed and Opened (Open type groove is recommended for the limit diameter and limit cross section.)
In order to avoid the damage of the seals, during the installation, the seals should be leave away with the shape edge of the parts and tools. The sharp edges and burr in the installation area of the seal must be removed.
 
Example of the Order Part No. :
GBR Rod Seal
Series No.: GBR    Piston Rod Diameter: d=100mm 
Part Number: GBR100115P903
GBR: Series Number
100: Piston Rod Diameter
115: Groove Diameter
P903: Material Code

GBR Rod Seals
d	D	L	H	Part No.	Remarks
40	55.5	6.3	6	GBR040055	○
45	60.5	6.3	6	GBR045060	○
50	65.5	6.3	6	GBR050065	○
55	70.5	6.3	6	GBR055070	○
60	75.5	6.3	6	GBR060075	○
63	78.5	6.3	6	GBR063078	○
65	80.5	6.3	6	GBR065080	○
70	85.5	6.3	6	GBR070085	○
75	90.5	6.3	6	GBR075090	○
80	95.5	6.3	6	GBR080095	○
85	100.5	6.3	6	GBR085100	○
90	105.5	6.3	6	GBR090105	●
95	110.5	6.3	6	GBR095110	○
100	115.5	6.3	6	GBR100115	○
105	120.5	6.3	6	GBR105120	○
110	125.5	6.3	6	GBR110125	●
115	130.5	6.3	6	GBR115130	○
120	135.5	6.3	6	GBR120135	●
125	140.5	6.3	6	GBR125140	○
130	145.5	6.3	6	GBR130145	○
135	150.5	6.3	6	GBR135150	○
140	155.5	6.3	6	GBR140155	●
145	160.5	6.3	6	GBR145160	○
150	165.5	6.3	6	GBR150165	○
160	175.5	6.3	6	GBR160175	○
170	185.5	6.3	6	GBR170185	○
180	195.5	6.3	6	GBR180195	○
190	205.5	6.3	6	GBR190205	○
200	221	8	7.7	GBR200221	○
210	231	8	7.7	GBR210231	○
220	241	8	7.7	GBR220241	○
240	261	8	7.7	GBR240261	○
260	281	8	7.7	GBR260281	○
Notice: 1. “●” means the seal has existing mould; 2. “○” means no existing mould, but can provide the turning type seals; If any special requirements of the materials and sizes, please contact with us.