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WR Type Wear Ring (Combined With Piston And Rod Seals)

Brand :
NOK

Caution

    Product Description

    Main applicable fluid

    - General petroleum hydraulic fluid oil.

    - Water-glycol type hydraulic fluid oil.

    - Oil-water emulsion type hydraulic fluid oil.

    - Phosphate ester type hydraulic fluid oil.

    - Low temperature petroleum hydraulic fluid oil.

    Feature

    - This is used as bearing of piston to prevent its scoring or eccentricity and to improve the durability of the packing.

    - Excellent compression proof and wear resistance because of its fabric reinforced laminated phenolic resin material.

    - One bias-cut is provided on the ring.

    Dimension

                                                                                             Wear Ring for Rod Seals
    R = 0.3 or below.
    The inner surface of the cylinder tube should be finished by buring (RLB) or honing (GH) to 0.4 to 3.2 μmRz (0.1 to 0.8 μmRa).
    Especially under severe lubricating condition, burnishing is required.
    ● The roughness is JIS B 2601 : 2001. When redgulation length cannot be kept, apply Pt.


                                                                                                  Wear Ring for Piston Seals
    R = 0.3 or below.
    The inner surface of the cylinder tube should be finished by buring (RLB) or honing (GH) to 0.4 to 3.2 μmRz (0.1 to 0.8 μmRa).
    Especially under severe lubricating condition, burnishing is required.
    ● The roughness is JIS B 2601 : 2001. When redgulation length cannot be kept, apply Pt.


    Specification Table

    WR Type Wear Ring Resin fiber polyester    
    Material :     NOK 88RS
    Callout
    Number    		Nominal size of Wear Ring, and Housing dimensionsNOK
    Part Number
    dDhtH
    WR 18 - 21.1 LC1821.13.91.554GW1375V0
    WR 22.4 - 25.5 LC22.425.53.91.554GW1376V0
    WR 22.4 - 27.4 LD22.427.45.52.55.6GW1279V0
    WR 28 - 31.1 LC2831.13.91.554GW1377V0
    WR 28  - 33   LD28335.52.55.6GW1280V0
    WR 35  - 40   LD35405.52.55.6GW1281V0
    WR 35.5 - 40.5 LD35.540.55.52.55.6GW1355V0
    WR 35.5 - 40.5 LA35.540.59.52.59.7GW1282V0
    WR 45  - 50   LD45505.52.55.6GW1283V0
    WR 45  - 50   LA45509.52.59.7GW1284V0
    WR 56  - 61   LD56615.52.55.6GW1356V0
    WR 56  - 61   LA56619.52.59.7GW1285V0
    WR 58  - 63   LD58635.52.55.6GW1345V0
    WR 58  - 63   LA58639.52.59.7GW1286V0
    WR 63  - 68   LD63685.52.55.6GW1357V0
    WR 63  - 68   LA63689.52.59.7GW1287V0
    WR 67  - 72   LD67725.52.55.6GW1358V0
    WR 67  - 72   LA67729.52.59.7GW1288V0
    WR 71  - 76   LD71765.52.55.6GW1359V0
    WR 71  - 76   LA71769.52.59.7GW1289V0
    WR 75  - 80   LD75805.52.55.6GW1335V0
    WR 75  - 80   LA75809.52.59.7GW1290V0
    WR 80  - 85   LA80859.52.59.7GW1360V0
    WR 80  - 85   LB808514.82.515GW1291V0
    WR 85  - 90   LA85909.52.59.7GW1320V0
    WR 85  - 90   LB859014.82.515GW1292V0
    WR 90  - 95   LA90959.52.59.7GW1361V0
    WR 90  - 95   LB909514.82.515GW1293V0
    WR 95 - 100  LD951005.52.55.6GW1346V0
    WR 95 - 100 LA951009.52.59.7GW1294V0
    WR 100 - 105 LA1001059.52.59.7GW1362V0
    WR 100 - 105 LB10010514.82.515GW1295V0
    WR 112 - 117 LA1121179.52.59.7GW1363V0
    WR 112 - 117 LB11211714.82.515GW1296V0
    WR 120 - 125 LA1201259.52.59.7GW1347V0
    WR 120 - 125 LB12012514.82.515GW1297V0
    WR 125 - 130 LA1251309.52.59.7GW1364V0
    WR 125 - 130 LB12513014.82.515GW1298V0
    WR 135 - 140 LA1351409.52.59.7GW1348V0
    WR 135 - 140 LB13514014.82.515GW1299V0
    WR 140 - 145 LB14014514.82.515GW1365V0
    WR 140 - 145 LE14014524.52.525GW1300V0
    WR 145 - 150 LA1451509.52.59.7GW1349V0
    WR 145 - 150 LB14515014.82.515GW1301V0
    WR 155 - 160 LA1551609.52.59.7GW1350V0
    WR 155 - 160 LB15516014.82.515GW1302V0
    WR 160 - 165 LB16016514.82.515GW1366V0
    WR 160 - 165 LE16016524.52.525GW1303V0
    WR 175 - 180 LB17518014.82.515GW1351V0
    WR 175 - 180 LE17518024.52.525GW1304V0
    WR 180 - 185 LB18018514.82.515GW1367V0
    WR 180 - 185 LE18018524.52.525GW1305V0
    WR 195 - 200 LB19520014.82.515GW1352V0
    WR 195 - 200 LE19520024.52.525GW1306V0
    WR 219 - 224 LB21922414.82.515GW1353V0
    WR 219 - 224 LE21922424.52.525GW1307V0
    WR 245 - 250 LB24525014.82.515GW1354V0
    WR 245 - 250 LE24525024.52.525GW1308V0
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