THK Original Grease AFE-CA Grease

AFE-CA grease uses high-grade synthetic oil as its base and a urea-based grease as its consistency enhancer. This ensures it produces very little dust, making it ideal for use in clean environments.

Features

• Low dust generation

This grease generates the least amount of dust among all THK low dust-generating grease products. Contains zero metallic elements, making it ideal for use in semiconductor-related fields.

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)		99	JIS K 2220 23
Worked penetration (25°C, 60 W)		280	JIS K 2220 7
Mixing stability (100,000 W)		310	JIS K 2220 15
Dropping point: °C		260	JIS K 2220 8
Evaporation amount: mass% (99°C, 22 h)		0.1	JIS K 2220 10
Oil separation rate: mass% (100°C, 24 h)		0.1	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	130	JIS K 2220 18
	Rotational	76
4-ball testing (welding load): N		1236	ASTM D2596
Service temperature range: °C		‒40 to 180
Color		Light yellowish brown

Low Dust-Generating Performance Test Data

• AFF Grease Test Data (Comparison of Dust Generation)

 

Item	Description
Tested model	SSR20XW1+280L
Grease quantity	1.2cm3(initial lubrication only)
Amount of air supplied	0.3ℓ/min
Feeding speed	500mm/s
Stroke	200mm