RYT type Wear ring (For U type Packing)
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.
- Supplied in hoop (10m/roll) enabling to be cut according to the cylinder diameter.
- Rareflon (NOK product name of polytetrafluoroethylene resin) is used for material. This is wearing has low frictional resistance eliminating stick slip.
Dimension
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One roll length is 10 m. 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.
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Remark: Determine the length of wear ring = L according to the formula below. L = π・(D - t) - S
Specification Table
RYT type Rareflon (PTFE)
Material : NOK 50ZF
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One roll length is 10 m. 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)
Remark: Determine the length of wear ring = L according to the formula below. L = π・(D - t) - S
Specification Table
RYT type Rareflon (PTFE)
Material : NOK 50ZF
| Callout number | Nominal of wearing | Housing dimensions | NOK Part Number | ||||
| t | h | S | φ D | φ d | H | ||
| RYT 8 | 2 | 8 | 1 ～ 1.5 | 18 ～ 63 | D–4 | 8 | GZ1291V0 |
| RYT 10 | 2 | 10 | 1 ～ 2 | 33 ～ 80 | D–4 | 10 | GZ1292V0 |
| RYT 15 | 2.5 | 15 | 1.5 ～ 3 | 41 ～ 130 | D–5 | 15 | GZ1293V0 |
| RYT 20 | 2.5 | 20 | 2 ～ 4 | 65 ～ 160 | D–5 | 20 | GZ1294V0 |
| RYT 25 | 2.5 | 25 | 2 ～ 6 | 85 ～ 225 | D–5 | 25 | GZ1295V0 |
| RYT 30 | 2.5 | 30 | 3 ～ 6.5 | 112 ～ 250 | D–5 | 30 | GZ1296V0 |
| RYT 35 | 2.5 | 35 | 3.5 ～ 8 | 132 ～ 300 | D–5 | 35 | GZ1297V0 |
| RYT 40 | 2.5 | 40 | 4 ～ 9 | 150 ～ 350 | D–5 | 40 | GZ1298V0 |
| RYT 45 | 2.5 | 45 | 4 ～ 10 | 165 ～ 400 | D–5 | 45 | GZ1299V0 |
| RYT 50 | 3 | 50 | 5 ～ 11 | 205 ～ 450 | D–6 | 50 | GZ1300V0 |
| RYT 55 | 3 | 55 | 6 ～ 13 | 230 ～ 500 | D–6 | 55 | GZ1301V0 |
| RYT 60 | 3 | 60 | 7 ～ 15 | 260 ～ 600 | D–6 | 60 | GZ1302V0 |
| RYT 70 | 3 | 70 | 8 ～ 28 | 290 ～ 1000 | D–6 | 70 | GZ1303V0 |