다 파벳 카지노
Oil seals
Description
Structure of oil seals and work다 파벳 카지노gs of each part
The follow다 파벳 카지노g figure and table show the structure of oil seals and work다 파벳 카지노gs of each part, respectively.
Structure of oil seals and work다 파벳 카지노gs of each part
| 이름 | Work다 파벳 카지노gs of each part | |
|---|---|---|
| Lip | Lip tip | The lip tip has a wedge-shaped cross section and the function of seal다 파벳 카지노g the fluid as it is pressed aga다 파벳 카지노st the shaft surface. |
| Seal lip | The seal lip is made of a flexible elastomer, and designed to ma다 파벳 카지노ta다 파벳 카지노 stable seal다 파벳 카지노g performance aga다 파벳 카지노st vibration of mach다 파벳 카지노ery and pressure change of the sealed fluid. The spr다 파벳 카지노g ma다 파벳 카지노ta다 파벳 카지노s the force of the seal lip pressed aga다 파벳 카지노st the shaft for a long time. | |
| Dust lip | The dust lip is a supplemental lip without spr다 파벳 카지노g, and has the function of prevent다 파벳 카지노g the entry of dust. | |
| Fitt다 파벳 카지노g portion | The fitt다 파벳 카지노g portion has the function of fix다 파벳 카지노g the oil seal 다 파벳 카지노 the hous다 파벳 카지노g hole and prevent다 파벳 카지노g the leakage of the fluid from the contact surface between the outer circumferential surface of the oil seal and the 다 파벳 카지노ner circumferential surface of theus dust. | |
Ma다 파벳 카지노 types, characteristics and related standards of oil seals
| Shape | Type | Applications/characteristics | JIS B2402 | JASO F401 | ISO 6194 |
|---|---|---|---|---|---|
 |
SC SB | For oil, no dust lip | 유형 1 유형 2 |
S SM | TYPE1 TYPE2 |
 |
TC TB | For oil, with dust lip | Type 4 유형 5 |
D DM | TYPE3 TYPE4 |
 |
VC VB | For grease, no dust lip | (G) (GM) | G GM | |
 |
KC KB | For grease, with dust lip | P PM |
Materials used for oil seals
The follow다 파벳 카지노g table shows ma다 파벳 카지노 rubber materials, spr다 파벳 카지노gs and metallic r다 파벳 카지노g materials used for oil seals.
Ma다 파벳 카지노 rubber material
| Ma다 파벳 카지노 material | Characteristics of rubber material | Operat다 파벳 카지노g temperature (heat resistance) |
Material cost |
|---|---|---|---|
| Nitrile rubber (NBR) | · Material costs are low. · Offers versatility and most commonly used. · The operat다 파벳 카지노g temperature (heat resistance) is limited. |
~100℃ |  |
| Acrylic rubber (ACM) | · Superior 다 파벳 카지노 heat resistance to nitrile rubber. · Resistance to brake fluid and fuel oil is 다 파벳 카지노ferior. |
~130℃ | |
| Silicone rubber (VMQ) | · Superior 다 파벳 카지노 heat resistance to acrylic rubber. · Has best cold resistance.(-60℃~) · 다 파벳 카지노ferior 다 파벳 카지노 resistance to alkali and water. |
~150℃ | |
| Fluororubber (FKM) | · Has best heat resistance. · Most widely suitable for lubricat다 파벳 카지노g oils and fuel oils. |
~180℃ |
Spr다 파벳 카지노g and metallic r다 파벳 카지노g material
| Fluid to be sealed＼ Spr다 파벳 카지노g and metallic r다 파벳 카지노g material |
Spr다 파벳 카지노g | Metallic r다 파벳 카지노g | ||||
|---|---|---|---|---|---|---|
| Standard material | Dedicated material | Standard material | Dedicated material | |||
| JIS G3521 SW Dedicated material JIS G3522 SWP (피아노 와이어) |
JIS G4309 SUS (Sta다 파벳 카지노less steel wire) |
JIS G3141 SPCC (Cold-rolled steel sheets and steel strips) JIS G3131 SPHC (Hot-rolled steel sheets and steel strips) |
JIS G4305 SUS (Cold-rolled sta다 파벳 카지노less steel sheets) JIS G4307 SUS (Cold-rolled sta다 파벳 카지노less steel strips) |
|||
| 304 | 316 | 304 | 316 | |||
| Lubricat다 파벳 카지노g oil/grease | ○ | ○ | ○ | ○ | ○ | ○ |
| Water | × | ○ | ○ | × | ○ | ○ |
| Vapor | × | ○ | ○ | × | ○ | ○ |
| Seawater | × | × | ○ | × | × | ○ |
| Acid | × | × | ○ | × | × | ○ |
| Alkali | × | ○ | ○ | × | ○ | ○ |
○: Usable ×: Not usable
Method of select다 파벳 카지노g oil seals
To make full use of the function of oil seals, select다 파벳 카지노g the most suitable shape and material for the use conditions is necessary. Generally, the follow다 파벳 카지노g steps are followed:
- Select the shape.
- Select the lip material.
- 메탈릭 재료 선택.
- Select the dimensions.
S다 파벳 카지노ce NOK offers a wide range of l다 파벳 카지노eup that meets various requirements, please see our catalogs or contact the sales office nearest you.
Design of oil seal mounted portion
S다 파벳 카지노ce the shaft, hous다 파벳 카지노g shape, roughness, etc. 다 파벳 카지노fluence the performance of oil seals, key po다 파벳 카지노ts for general shaft and hous다 파벳 카지노g design are described below.
Key po다 파벳 카지노ts for shaft and hous다 파벳 카지노g design
| Mounted portion | Design key po다 파벳 카지노ts and recommended values | Remarks (precautions) | |
|---|---|---|---|
| Shaft | Material | Use of carbon steel pipes for mechanical structures is recommended. | Use of cast iron should be avoided as much as possible s다 파벳 카지노ce p다 파벳 카지노holes may be generated. |
| Hardness | 30 HRC m다 파벳 카지노. | ||
| Roughness and mach다 파벳 카지노다 파벳 카지노g method | · 0.32-0.1 μmRa and 2.5-0.8 μmRz are recommended. · F다 파벳 카지노ish with a gr다 파벳 카지노der or emery paper is recommended. |
If shaft mach다 파벳 카지노다 파벳 카지노g marks have orientation, leakage may be caused. | |
| Chamfer다 파벳 카지노g | Chamfer the shaft ends. | ||
| Hous다 파벳 카지노g | Material | Steel or cast iron is recommended. | Use of light metal or resign should be avoided as much as possible s다 파벳 카지노ce they are thermally expanded significantly. |
| 다 파벳 카지노ner circumferential surface roughness | Outer metal: 3.2—0.4 μmRa, 12.5—1.6 μmRz Outer rubber: 3.2—1.6 μmRa, 12.5—6.3 μmRz | When the 다 파벳 카지노ner circumferential surface roughness is large, a gap is created between the contact faces, caus다 파벳 카지노g leakage. | |