Spherical bearings
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SIT TORQUE-FLEX® narrow “XP” high-performance belts are manufactured in accordance with European standards ISO 4184 and DIN 2215. Designed for high-speed operation on small-diameter pulleys and short center distances, they are also suitable for use in multiple V-belt drives where high shock loads and heavy loads are encountered. No special selection is required for multiple drives, as they are manufactured according to the Matchmaker® System , which ensures tighter production tolerances compared to regulatory limits.
- Profile: XPZ-XPA-XPB-XPC
- Static conductor (ISO 1813)
- Temperature: -20/+70 °C
- Traction members: Vytacord (high-strength polyester)
- Composite: Wingprene
- Guaranteed dimensional stability
- Greater flexibility (molded sprocket)
- The reinforced tension members
- Matchmaker® System
Available with standard V-pulleys made of DIN 1691 GG20/GG25 cast iron, with solid shaft, for mounting SER-SIT® tapered bushes, preconfigured with oversized hub for self-locking units or according to customer specifications.
This type of bearing can withstand a moderately high level of bidirectional axial load and is self-aligning. This type is widely used for large machines where shaft deflection or mounting error may occur. Spherical roller bearings are used for paper mill equipment, rolling mills, rolling stock, shaking screens, and general industrial machinery. The assembly and disassembly of spherical roller bearings is facilitated by the use of tapered bearings in conjunction with tapered holes, adapters, or withdrawal sleeves. The internal clearance can also be precisely adjusted using a tapered bore bearing. Pressed steel cages are used for small-bore bearings, and machined, high-strength brass or mild steel cages are used for bearings with larger bores.
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