Description
Commonly Used Self-Aligning Ball Bearing Models (National Standard Starting with 1)
1. Mainstream Basic Series (Most Commonly Used)
1200 Series (Narrow Type, Light Load, Most Popular)
1204, 1205, 1206, 1207, 1208, 1209, 1210, 1211, 1212
Applications: Fans, Conveyors, General Motors, Textile Machines
1300 Series (Wider, Higher Load Capacity)
1304, 1305, 1306, 1307, 1308, 1309, 1310, 1312
Higher load capacity than the 12 series, often used in slightly heavier drive shafts.
2200 Series (Wider, Double Row Light Type)
2204, 2205, 2206, 2207, 2208, 2209, 2210
Wider than the 12 series, same outer diameter, compact design; choose this for higher load capacity.
2300 Series (Widest type, heavy-duty self-aligning ball bearings)
2305, 2306, 2307, 2308, 2309, 2310 Largest width, most double-row ball bearings, strongest load capacity
2. Tapered bore version (suffix K, with adapter sleeve, convenient for shaft installation)
1205K, 1306K, 2207K, 2308K Tapered bore bearings must be used with H series adapter sleeves. They can be fixed to the shaft without a keyway. Widely used in agricultural machinery and wind turbines.
3. Common suffix meanings (for export procurement)
• K: Tapered bore (1:12 taper)
• K+H: Bearing + matching adapter sleeve complete set
• M: Brass cage (high-speed operation)
