Struggling with oil leaks, dust intrusion, or short-lived seals? It might be time to switch to a skeleton oil seal—a trusted solution in high-speed and high-pressure systems.
Skeleton oil seals provide enhanced shaft sealing with internal metal reinforcement, extending service life and performance.
Read on to learn what they are, how they work, and how to choose the right type for your machinery.
What makes a skeleton oil seal different from a standard seal?
Unlike regular rubber seals, a skeleton oil seal includes a metal insert that reinforces the sealing structure.
This “skeleton” helps maintain lip pressure and positioning even under misalignment, pressure, and rotation.
Also known as radial shaft seals, they combine flexibility from rubber (NBR or FKM) with the strength of steel—ideal for motors, pumps, and gearboxes.
Looking for high-strength applications? Explore our TG4 スケルトン オイルシール with dust lip protection.
What types of skeleton oil seals are available?
There’s no one-size-fits-all in dynamic sealing. Each application requires a tailored design.
| タイプ | 構造 | ダストリップ | 一般的な使用 |
|---|---|---|---|
| TG4 | ダストリップ付きダブルリップ | ✅ | モーター、ポンプ、ギアボックス |
| TC | 金属シェル付きダブルリップ | ❌ | 標準的な工業用途 |
| Kタイプ | コンパクトなプロファイル | ❌ | 狭い住宅、スペースが限られたエリア |
| 分割タイプ | Open-style, easy install | ✅ | Field repairs and maintenance |
私たちの TC Skeleton Oil Seal is ideal for standard rotation sealing without dust interference.
Which materials are used in skeleton oil seals?
Rubber alone isn’t enough. Material choice defines durability and performance.
| 材料 | フルネーム | プロパティ | 使用事例 |
|---|---|---|---|
| ノンブル | ニトリルゴム | 耐油性、手頃な価格、-40°C ～ +120°C | Motors, compressors, low-temp |
| フッ化水素 | フッ素エラストマー | 耐熱性、耐薬品性、-30°C～+200°C | Gearboxes, engines, high-temp |
私たちの FKMシール are ideal for chemical and thermal extremes. NBR fits general industry needs.
Where are skeleton oil seals commonly used?
Skeleton oil seals are standard in:
- 電気モーター
- 油圧ポンプ
- Automotive crankshafts
- Gearboxes
- Industrial fans and blowers
Need guidance? Our オイルシール相互参照表 helps match OEM parts like National and SKF.
How do I choose the right type?
Use this checklist to avoid mismatches:
| 要素 | 確認すべきこと |
|---|---|
| シャフト径 | Must match seal’s inner diameter |
| Housing Bore | Fit outer diameter tightly |
| Speed Rating | NBR ≤15 m/s, FKM supports higher speeds |
| 温度 | Use FKM above 120°C |
| Media Resistance | FKM needed for fuel/solvent exposure |
| Dusty Conditions | Use types with dust lips (TG4, Split) |
For tough environments, we recommend the TG4 double-lip design with NBR or FKM rubber.
結論
Skeleton oil seals combine durability, stability, and high sealing integrity. The right type ensures reliability across electric, hydraulic, and rotating systems.
Request Custom Sizes or Bulk Supply
We offer OEM, split-style, and dual-lip variants for all sectors.
📩 メールアドレス: お問い合わせ
📱 WhatsApp: +86 17622979498
Related topic
オイルシールガイド：信頼性の高い運用のための5つのヒント（2025年）
High-Temperature Sealing: How to Prevent Failures in Extreme Conditions?
部品番号またはサイズで適切なオイルシールを識別するにはどうすればよいでしょうか?
JA 
EN 
BN 
AR 
CS 
DA 
DE 
EL 
EO 
ES 
IT 
FR 
PT 
ID 
RU 
ML 
RO 
VI 
UK 
TR 
TH 
KO