Original Grease AFG Grease
AFG Grease is a high-grade grease for ball screws that uses high-grade synthetic oil as its base and a urea-based grease as its consistency enhancer. This ensures that it has superior low heatgenerating properties, allowing for use over a wide temperature range—from low to high temperatures.
Features
Features
- Low heat generation
Since the viscous resistance is low, the grease generates only a minimal level of heat even during high-speed operation. - Low torque properties
Features a low base oil kinematic viscosity, making it ideal for ball screws. - Water resistance
AFG Grease is a highly water-resistant grease that is less vulnerable to softening and reductions in extreme pressure resistance due to moisture penetration.
Representative Physical Properties
|
Item |
Representative value |
Test method |
|
|
Consistency enhancer |
Urea-based |
||
|---|---|---|---|
|
Base oil |
High-grade synthetic oil |
||
|
Base oil kinematic viscosity: mm2/s (40°C) |
25 |
JIS K 2220 23 |
|
|
Worked penetration (25°C, 60 W) |
285 |
JIS K 2220 7 |
|
|
Mixing stability (100,000 W) |
329 |
JIS K 2220 15 |
|
|
Dropping point: °C |
261 |
JIS K 2220 8 |
|
|
Evaporation amount: mass% (99°C, 22 h) |
0.2 |
JIS K 2220 10 |
|
|
Oil separation rate: mass% (100°C, 24 h) |
0.5 |
JIS K 2220 11 |
|
|
Copper plate corrosion (B method, 100°C, 24 h) |
Accepted |
JIS K 2220 9 |
|
|
Low-temperature torque: mN-m (‒20°C) |
Starting |
170 |
JIS K 2220 18 |
|
Rotational |
70 |
||
|
4-ball testing (welding load): N |
3089 |
ASTM D2596 |
|
|
Service temperature range: °C |
‒45 to 160 |
||
|
Color |
Brown |
||
Low Heat Generation Test Data
Test conditions
| Item | Description |
| Tested model |
SBN3210-7RRG0+1094LC5 |
|---|---|
| Rotational speed | 400 to 3000min-1 |
| Grease quantity | 12cm3 (initial lubrication only) |
| Temperature measure- ment point |
Nut outer diameter area |
Ball Screw Torque Data
Test conditions
| Item | Description |
| Tested model |
SBN3210-7RRG0+1094LC5 |
|---|---|
| Rotational speed | 2 to 1200min-1 |
| Amount of lubricant injected |
13cm3 (initial lubrication only) |
