SGO Develon
Develon bearing has been improved to make SGO be the No. 1 oilless & sliding bearing manufacturer in Korea and the world. This sliding bearing is steel-backed sintered metal bearing with excellent wear-resistance for heavy load and low/mid velocity.
Sintered materials (1~1.2mm) including Cu, Fe, Ni, Sn, MoS2, Graphite and oil impregnated pores are spotlighted as a new generational sliding bearings.
Characteristics
- Since solid lubricant is evenly distributed, it can be used for any motion direction.
- Since sintering and solid lubricant are applied, lubrication is multiplied, which can be used in high speed.
- Since it has lower heat expansion rate compared to general non-metal bearing, temperature change is low and it maintains high accuracy.
- Since heat processing is applied on external material, it is suitable for high load and it can be used without lubrication.
- Additional oil impregnation is needed to prevent oil washing after it has been stored for a long time or additional processing has been applied.
- Standards parts and custom-made parts available.
Bearing structure
Sintered bearing layer (1 ~ 1.2 mm)
→ It is composed of solid lubricant such as Cu, Fe, Ni, Sn, MoS2, graphite and pores filled with oil.
Backing steel
→ KS SS400/ SM45C
Bi-layer structure
Distribution shape of solid lubricants
Mechanical & Physical properties
| Code | Type | Lubrication | P Contact pressure (kgf/㎠) <N/㎟> |
V Velocity (m/min) <m/s> |
PV value (kgf/㎠·m/min) <N/㎟·m/s> |
T temperature (℃) |
Specific gravity (g/cm3) |
Hardness (HRB) |
Elongation (%) |
Tensile strength (kgf/㎟) <N/㎟> |
|---|---|---|---|---|---|---|---|---|---|---|
| 200S | Fe-sintering | Dry | 290(760) <29(76)> |
30 <0.5> |
1,000(3,000) <1.65(4.90)> |
-40 ~+120 | 6.3~7.1 | 0~20 | 17 | 41 <400> |
| Periodic lubrication | 500(760) <50(76)> |
60 <1> |
1,500(3,000) <2.45(4.90)> |
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| 200SP | Cu-sintering | Dry | 250(700) <25(70)> |
30 <0.5> |
980(2,800) <1.65(4.58)> |
-40 ~+120 | 6.0~6.8 | -15~15 | 17 | 41 <400> |
| Periodic lubrication | 450(700) <45(70)> |
60 <1> |
1500(3,000) <2.45(4.90)> |
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| 200H | Fe-sintering | Dry | 450(750) <45(75)> |
30 <0.5> |
1,000(3,000) <1.63(4.90)> |
-40 ~+250 | 6.3~7.1 | 35~45 | 28 | 48 <470> |
| Periodic lubrication | 700(1200) <70(120)> |
70 <1.16> |
1,500(3,000) <2.45(4.90)> |
▶ ( ) : Allowable static contact pressure (no sliding or sliding at extremly slow speed (0.1m/min or below))
▶ Above data is based on backing steel KS SS400 / SM45C and its mechanical characteristics may be changed when backing steel is changed.
▶ Value indicated above is general value and it can be changed without notification for improvement.