This steel spiral return roller also called self-cleaning roller, it can clean the sticky material on the belt and protected build-up on the rollers. JOYROLL maintenance-free steel spiral return roller reduces downtime due to less carryback or less belt mistracking.
Roller Diameter: 89, 102, 108, 114, 127, 133, 140, 152, 159, 165, 178, 194, 219mm
Roller Length: 100-2400mm.
Shaft Diameter: 20, 25, 30, 35, 40, 45, 50mm
Bearing type: 6204, 6205, 6305, 6206, 6306, 6307, 6308, 6309, 6310
Surface Treatment: Electrostatic Powder Coating, Galvanization.
Standard: DIN, CEMA, JIS, AS, SANS-SABS, GOST, AFNOR etc.
RAW MATERIAL OF ROLLERS:
1.Pipe: High precision ERW special pipe with small out of roundness. Material Q235 equal to Europe S235JR
2.Shaft: High precision cold-drawn round bar, Material 45# equal to DIN C45.
3.Bearing: Deep groove ball bearing with clearance C3. Double Seal, Quality Grade P5Z3
4.Bearing House: Cold drawn steel plate, material 08AL equal to DIN ST12/14
5.Inner Seal: Lip type seal, Material Nylon.
6.Labyrinth Seal: Main Seal System, Material is Nylon.
7.Lubricating Grease: #2 Long lasting lubricating grease, working condition -20°c to 120°c
8.Surface Treatment: Electrostatic Powder Coating
- Preventing material buildup, Self-cleaning, non-stick surface
- Specially advantageous with sticky materials on return side;
- Highly-effective labyrinth seals protected from dust & water into the bearing;
- Designed and manufactured for a long, trouble-free life;
- Maintenance-free, high-quality sealed ball bearing.