WR Type Wear Ring
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
_001.jpg)
Wear Ring for U type Packing
R = 0.3 or below.
The inner surface of the cylinder tube should be finished by burring (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 regulation length cannot be kept, apply Pt.
.jpg)
Wear Ring for packing of SPG and SPGW type.
R = 0.3 or below.
The inner surface of the cylinder tube should be finished by burring (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 regulation length cannot be kept, apply Pt.
Specification Table
WR Type Wear Ring Fabric Reinforced Phenolic Resin
Specification table Wear Ring for U type Packing
Material : NOK 12RS
Specification table Wear Ring for packing of SPG and SPGW type.
Material : NOK 12RS
_001.jpg)
Wear Ring for U type Packing
R = 0.3 or below.
The inner surface of the cylinder tube should be finished by burring (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 regulation length cannot be kept, apply Pt.
.jpg)
Wear Ring for packing of SPG and SPGW type.
R = 0.3 or below.
The inner surface of the cylinder tube should be finished by burring (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 regulation length cannot be kept, apply Pt.
Specification Table
WR Type Wear Ring Fabric Reinforced Phenolic Resin
Specification table Wear Ring for U type Packing
Material : NOK 12RS
| Callout Number | Nominal size of Wear Ring, and Housing dimensions | NOK Part Number | ||||
| d | D | h | t | H | ||
| WR 18 | 14 | 18 | 8 | 2 | 8 | GW0241P0 |
| WR 19.2 | 15.2 | 19.2 | 8 | 2 | 8 | GW0242P0 |
| WR 20 | 16 | 20 | 8 | 2 | 8 | GW0243P0 |
| WR 22 | 18 | 22 | 8 | 2 | 8 | GW0244P0 |
| WR 24 | 20 | 24 | 8 | 2 | 8 | GW0245P0 |
| WR 25 | 21 | 25 | 8 | 2 | 8 | GW0246P0 |
| WR 26 | 22 | 26 | 8 | 2 | 8 | GW0247P0 |
| WR 28 | 24 | 28 | 8 | 2 | 8 | GW0248P0 |
| WR 30 | 26 | 30 | 8 | 2 | 8 | GW0249P0 |
| WR 31 | 27 | 31 | 8 | 2 | 8 | GW0250P0 |
| WR 31.5 | 27.5 | 31.5 | 8 | 2 | 8 | GW0251P0 |
| WR 33 | 29 | 33 | 10 | 2 | 10 | GW0252P0 |
| WR 35 | 31 | 35 | 10 | 2 | 10 | GW0253P0 |
| WR 35.4 | 31.4 | 35.4 | 10 | 2 | 10 | GW0254P0 |
| WR 35.5 | 31.5 | 35.5 | 10 | 2 | 10 | GW0255P0 |
| WR 38 | 34 | 38 | 10 | 2 | 10 | GW0256P0 |
| WR 40 | 36 | 40 | 10 | 2 | 10 | GW0257P0 |
| WR 41 | 37 | 41 | 15 | 2 | 15 | GW0258P0 |
| WR 43 | 38 | 43 | 15 | 2.5 | 15 | GW0259P0 |
| WR 44.5 | 39.5 | 44.5 | 15 | 2.5 | 15 | GW0260P0 |
| WR 45 | 40 | 45 | 15 | 2.5 | 15 | GW0261P0 |
| WR 50 | 45 | 50 | 15 | 2.5 | 15 | GW0006P1 |
| WR 51.5 | 46.5 | 51.5 | 15 | 2.5 | 15 | GW0263P0 |
| WR 55 | 50 | 55 | 15 | 2.5 | 15 | GW0264P0 |
| WR 56 | 51 | 56 | 15 | 2.5 | 15 | GW0010P1 |
| WR 60 | 55 | 60 | 15 | 2.5 | 15 | GW0012P1 |
| WR 61 | 56 | 61 | 15 | 2.5 | 15 | GW0267P0 |
| WR 63 | 58 | 63 | 15 | 2.5 | 15 | GW0268P0 |
| WR 65 | 60 | 65 | 20 | 2.5 | 20 | GW0269P0 |
| WR 66 | 61 | 66 | 20 | 2.5 | 20 | GW0270P0 |
| WR 69 | 64 | 69 | 20 | 2.5 | 20 | GW0271P0 |
| WR 70 | 65 | 70 | 20 | 2.5 | 20 | GW0019P1 |
| WR 71 | 66 | 71 | 20 | 2.5 | 20 | GW0192P1 |
| WR 75 | 70 | 75 | 20 | 2.5 | 20 | GW0021P1 |
| WR 76 | 71 | 76 | 20 | 2.5 | 20 | GW0746P0 |
| WR 80 | 75 | 80 | 20 | 2.5 | 20 | GW0027P1 |
| WR 85 | 79 | 85 | 25 | 3 | 25 | GW0030P1 |
| WR 90 | 84 | 90 | 25 | 3 | 25 | GW0036P1 |
| WR 95 | 89 | 95 | 25 | 3 | 25 | GW0167P1 |
| WR 100 | 94 | 100 | 25 | 3 | 25 | GW0041P3 |
| WR 105 | 99 | 105 | 25 | 3 | 25 | GW0278P0 |
| WR 110 | 104 | 110 | 25 | 3 | 25 | GW0051P1 |
| WR 112 | 106 | 112 | 30 | 3 | 30 | GW0280P0 |
| WR 115 | 109 | 115 | 30 | 3 | 30 | GW0055P2 |
| WR 120 | 114 | 120 | 30 | 3 | 30 | GW0059P1 |
| WR 125 | 119 | 125 | 30 | 3 | 30 | GW0283P0 |
| WR 130 | 123 | 130 | 30 | 3.5 | 30 | GW0065P1 |
| WR 132 | 125 | 132 | 35 | 3.5 | 35 | GW0285P0 |
| WR 140 | 133 | 140 | 35 | 3.5 | 35 | GW0075P1 |
| WR 150 | 143 | 150 | 35 | 3.5 | 35 | GW0086P1 |
| WR 157 | 150 | 157 | 40 | 3.5 | 40 | GW0287P0 |
| WR 160 | 153 | 160 | 40 | 3.5 | 40 | GW0093P2 |
| WR 165 | 157 | 165 | 45 | 4 | 45 | GW0289P0 |
| WR 170 | 162 | 170 | 45 | 4 | 45 | GW0290P0 |
| WR 180 | 172 | 180 | 45 | 4 | 45 | GW0104P1 |
| WR 185 | 177 | 185 | 45 | 4 | 45 | GW0292P0 |
| WR 190 | 182 | 190 | 45 | 4 | 45 | GW0293P0 |
| WR 200 | 192 | 200 | 45 | 4 | 45 | GW0109P1 |
| WR 205 | 197 | 205 | 50 | 4 | 50 | GW0181P1 |
| WR 210 | 202 | 210 | 50 | 4 | 50 | GW0296P0 |
| WR 220 | 212 | 220 | 50 | 4 | 50 | GW0297P0 |
| WR 224 | 216 | 224 | 50 | 4 | 50 | GW0298P0 |
| WR 225 | 217 | 225 | 50 | 4 | 50 | GW0115P1 |
| WR 230 | 222 | 230 | 55 | 4 | 55 | GW0300P0 |
| WR 240 | 232 | 240 | 55 | 4 | 55 | GW0301P0 |
| WR 250 | 242 | 250 | 55 | 4 | 55 | GW0122P1 |
| WR 260 | 252 | 260 | 60 | 4 | 60 | GW0303P0 |
| WR 270 | 262 | 270 | 60 | 4 | 60 | GW0304P0 |
| WR 275 | 267 | 275 | 60 | 4 | 60 | GW0305P0 |
| WR 290 | 282 | 290 | 70 | 4 | 70 | GW0307P0 |
| WR 297 | 289 | 297 | 70 | 4 | 70 | GW0308P0 |
| WR 300 | 292 | 300 | 70 | 4 | 70 | GW0309P0 |
| WR 312 | 304 | 312 | 70 | 4 | 70 | GW0310P0 |
| WR 332 | 324 | 332 | 70 | 4 | 70 | GW0311P0 |
Specification table Wear Ring for packing of SPG and SPGW type.
Material : NOK 12RS
| Callout Number | Nominal size of Wear Ring, and Housing dimensions | NOK Part Number | ||||
| d | D | h | t | H | ||
| WR 30W | 26 | 30 | 8 | 2 | 8 | GW0249P0 |
| WR 31.5W | 27.5 | 31.5 | 8 | 2 | 8 | GW0251P0 |
| WR 32W | 28 | 32 | 8 | 2 | 8 | GW0314P0 |
| WR 35W | 31 | 35 | 8 | 2 | 8 | GW0315P0 |
| WR 35.5W | 31.5 | 35.5 | 8 | 2 | 8 | GW0316P0 |
| WR 40W | 36 | 40 | 8 | 2 | 8 | GW0317P0 |
| WR 45W | 40 | 45 | 8 | 2.5 | 8 | GW0318P0 |
| WR 50W | 45 | 50 | 8 | 2.5 | 8 | GW0279P0 |
| WR 55W | 50 | 55 | 8 | 2.5 | 8 | GW0319P0 |
| WR 56W | 51 | 56 | 8 | 2.5 | 8 | GW0320P0 |
| WR 60W | 55 | 60 | 8 | 2.5 | 8 | GW0321P0 |
| WR 63W | 58 | 63 | 8 | 2.5 | 8 | GW0322P0 |
| WR 65W | 60 | 65 | 10 | 2.5 | 10 | GW0323P0 |
| WR 69W | 64 | 69 | 10 | 2.5 | 10 | GW0324P0 |
| WR 70W | 65 | 70 | 10 | 2.5 | 10 | GW0018P1 |
| WR 71W | 66 | 71 | 10 | 2.5 | 10 | GW0326P0 |
| WR 75W | 70 | 75 | 10 | 2.5 | 10 | GW0327P0 |
| WR 80W | 75 | 80 | 10 | 2.5 | 10 | GW0025P1 |
| WR 85W | 79 | 85 | 15 | 3 | 15 | GW0329P0 |
| WR 90W | 84 | 90 | 15 | 3 | 15 | GW0330P0 |
| WR 95W | 89 | 95 | 15 | 3 | 15 | GW0331P0 |
| WR 100W | 94 | 100 | 15 | 3 | 15 | GW0332P0 |
| WR 108W | 102 | 108 | 15 | 3 | 15 | GW0333P0 |
| WR 110W | 104 | 110 | 15 | 3 | 15 | GW0334P0 |
| WR 112W | 106 | 112 | 15 | 3 | 15 | GW0335P0 |
| WR 120W | 114 | 120 | 15 | 3 | 15 | GW0336P0 |
| WR 125W | 119 | 125 | 15 | 3 | 15 | GW0337P0 |
| WR 130W | 123 | 130 | 15 | 3.5 | 15 | GW0338P0 |
| WR 140W | 133 | 140 | 20 | 3.5 | 20 | GW0339P0 |
| WR 150W | 143 | 150 | 20 | 3.5 | 20 | GW0340P0 |
| WR 160W | 153 | 160 | 20 | 3.5 | 20 | GW0341P0 |
| WR 170W | 162 | 170 | 25 | 4 | 25 | GW0342P0 |
| WR 180W | 172 | 180 | 25 | 4 | 25 | GW0343P0 |
| WR 190W | 182 | 190 | 25 | 4 | 25 | GW0344P0 |
| WR 200W | 192 | 200 | 25 | 4 | 25 | GW0345P0 |
| WR 204W | 196 | 204 | 25 | 4 | 25 | GW0346P0 |
| WR 210W | 202 | 210 | 25 | 4 | 25 | GW0347P0 |
| WR 224W | 216 | 224 | 25 | 4 | 25 | GW0348P0 |
| WR 225W | 217 | 225 | 25 | 4 | 25 | GW0349P0 |
| WR 230W | 222 | 230 | 30 | 4 | 30 | GW0350P0 |
| WR 240W | 232 | 240 | 30 | 4 | 30 | GW0351P0 |
| WR 250W | 242 | 250 | 30 | 4 | 30 | GW0352P0 |