Top Bearings is China manufacturers & suppliers who mainly produces Lining Sprayed Self Lubricating Materials For Valves with many years of experience. Hope to build business relationship with you.
|
Material: |
Stainless Steel + Porous Bronze + PTFE |
Types: |
Wrapped Bushes, Flanged Bearing, Thrust Washer |
|
Application: |
Printing And Dyeing Machines, And Machines Used In The Ocean Industry, Etc. |
Working Temperature: |
-200~+280℃ |
|
Hardness: |
>120 HB |
Max. Load: |
Static Load 250N/mm², Dynamic Load 140N/mm² |
|
High Light: |
metric sleeve bearings, self lube bearings |
||
Lining-Sprayed Self Lubricating Bushing Marine Stainless Steel Bush SF-1DU for Valves
SF-1SS bushing is based on stainless steel back and spay-painted PTFE on the surface. It has good performance of anti-acid, anti-alkali, anti-salty liquid and can be widely used in chemical industry such as acid/alkali flow indicator, pumps, valves etc. and also in the sliding position where anti-corrosion is a necessity mostly in marine industry .
1. PTFE with fibre 0.01~0.03mm
2. Stainless steel backing 0.7~2.3mm
Load capacity: 100N/mm2 Temperature: -190°C ~+280°C
Speed limit: 2.5m/s Friction coef(µ): 0.03~0.18 PV
limit(dry): 3.0N/mm2 .m/s PV limit(oil): 40N/mm2 .m/s
| Type | In Air | In Vacuum | In water | In Vapor | Weak Acid | middle Acid | Strong Acid | In Alkali |
| SF 1SS | OK | OK | OK | OK | OK | NO | NO | OK |
1. PTFE with oil fiber can protect the shaft, while machine operated.
2. It is of low friction coefficient, good anti-wear.
3. Good running in property.
4. It fits well in motion of circumrotation, sway and to-and-fro.
5. Good anti-corrosion.
6. It can be used in food machine, pharmaceutical machine etc. due to lead-free.
7. It is mainly used in the condition of medium acid and alkali, such as chemical industry, pumps, valves etc.
Friction & Wear Test:
| Type | Time |
Test Condition
|
Friction coef(u) | TEMP. | Wear | ||
| Lubricate | Speed | Drang | (°C) | (mm) | |||
| SF 1SS | 3hr | Dry | 0.4m/s | 3.5N/mm2 | 0.103 | 66 | 0.005 |
| SF 1SS | 3hr | Oil | 0.4m/s | 3.5N/mm2 | 0.066 | 65 | 0.005 |
Packing
1. Anti-rust oil + plastic films or bag + carton and pallet
2. Per customer's requirement
Delivery
· For parts in stock: delivery time within 3 days
· For most of the orders: delivery time 10-25 days
· For special parts, big order, or unpopular items: delivery time from 30-60 days
· Please send us the exact part numbers and order quantities in order to get a specific delivery time
Corrosion Resistant DU Oil Free Steel Bushing Sleeve
Lubrication free Bronze Backed PTFE Composite Bushing
Self Lubricating Red PTFE DP4 Hydraulic Cylinder Bushing
Cylindrical Flange DU Bush For Seatback Control
Steel Backed Red PTFE Flanged DP4 Composite Bushings
Metal Backed Tin Plating Flanged Split Bushing