1. Waterproof, dustproof
2. Leak-proof high
3. Stable running, long life
4. Less resistance
Specifications
1. Roller idlers Dia 50mm-219mm, , which are used in the steel industry, harbor, coal industry, power industry, cement industry, etc
2. Tube: Carbon steel tube S235JR/ seamless steel tube
3. Shaft: 45# STEEL equal to C45, or as request.
4. Bearing: Single & Double Row Deep Groove Ball Bearing 2RZ&2Z with C3 clearance, the brand can be according to the customers' requirements.
5. Seals: Grease retaining inner seal with Multi-stage Labyrinth and Retention Cap with Outboard Rubbing Flinger Seal.
6. Lubrication: Grease is Lithium soap type grease with Rust Inhibitors.
7. Welding: Mixed gas shielded arc welding end
8. Painting: Ordinary painting, hot galvanized painting, electric static spraying painting, baked painting.
Summary of the roller size:
Standard Diameter Length Scope Idler's Shell Wall Thickness Bearings Type
Mm lnch mm mm min-max
63.5 2 1/2 150-3500 3.0-3.75 204
76 3 150-3500 3.0-4.0 204 205
89 3 1/3 150-3500 3.0-4.0 204 205
102 4 150-3500 3.5-4.0 204 205 305
108 4 1/4 150-3500 3.5-4.0 204 205 305 306
114 4 1/2 150-3500 3.5-4.5 205 206 305 306
127 5 150-3500 3.5-4.5 204 205 305 306
133 5 1/4 150-3500 3.5-4.5 205 206 207 305 306
140 5 1/2 150-3500 3.5-4.5 205 206 207 305 306
152 6 150-3500 4.0-4.5 205 206 207 305 306 307 308
159 6 1/4 150-3500 4.0-4.5 205 206 207 305 306 307 308
165 6 1/2 150-3500 4.5-6.0 207 305 306 307 308
177.8 7 150-3500 4.5-6.0 207 306 307 308 309
190.7 7 1/2 150-3500 4.5-6.0 207 306 307 308 309
194 7 5/8 150-3500 4.5-6.0 207 307 308 309 310
219 8 5/8 150-3500 4.5-6.0 308 309 310
Besides we can manufacture the pulleys according to the buyers'requirements