Ball transfer unit
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BALL TRANSFER UNITS

COMPANY PROFILE RGP INTERNATIONAL SRL, was founded in 1973 and is worldwide well known top player in the production of precision balls, cylindrical rollers and needles, ball transfers and different components for linear motion. The specific strength and power of our Group is the widest range in the world of sizes, materials and grades completely available in one source of supply. The Group is employing 420 people worldwide and the North Milan facility is employing 60 people and covers 10,000 square meters including headquarters, warehouses, logistic, workshop, quality control department....

CONSTRUCTION RGP ball transfer units are multi directional systems for manufactured in several materials according to the final linear handling of loads. application. Then all components can be manufactured They are composed of a large precision ball rolling on in different materials to satisfy all types of applications. a bed of small precision balls seated in a hardened hemispheric cup. RGP manufactures mainly two versions of ball transfer units: Thanks to the quality of all the manufacturing process steps for all components, friction is extremely reduced - with housing in machined and...

OPERATIVE CONDITIONS RGP ball transfer units can be positioned in any orientation. If the big ball is oriented downwards (not conventional orientation) less loading capacities and fluency must be expected. Some types for special applications can be used only in the conventional orientation (big ball upwards). In the technical data sheets of each version loading capacity are available according to the orientation. Working temperatures usually are from -20°C to +100°C (+70°C for continuous use, +100°C for intermittent use). These values do not affect the correct running and quality of the...

APPLICATIONS RGP ball transfer units are used in several applications. The most common are: • aircraft transport cargo rolling decks • sheet metal-working machines • hydraulic presses • ball transfer tables • lifting equipments & platforms • conveyors • marble working machines • ceramic tiles and bricks machines • transporters for containers & platforms • sliding walls • sliding doors and windows • robotics, electronics • automotive racks • moulding machines

IDENTIFICATION LABELS SPM heavy duty ball transfer unit with flange SBM heavy duty ball transfer unit without flange SPM-R heavy duty ball transfer unit with flange and seeger insert clip SPS pressed metal sheet ball transfer unit SPP plastic material ball transfer unit FL body with threaded nut I body with threaded hole A body made of bright steel and AISI 52100 chrome steel balls B body made of zinc plated steel and AISI 52100 chrome steel balls C body made of zinc plated steel and AISI 420C stainless steel balls BD body made of zinc plated steel, big ball made of plastic material and...

BALL TRANSFER UNITS “SPM” HEAVY DUTY TYPE WITH UPPER FLANGE Housing with upper flange made of machined and hardened steel. Machined steel cover cap.* Felt sealing system.** Self cleaning bottom hole. Housing available in steel, zinc plated steel, stainless steel. Chrome steel, AISI 420C stainless steel, plastic material balls. * For SPM 12 – 15 – 25 in pressed metal sheet. ** Except SPM 12 – 15 – 25 and types with the large ball in plastic material. “SPM” HEAVY DUTY TYPE SEEGER INSERT CLIP DIN 471 Housing with upper flange made of machined and hardened steel. Insert clip for fixing ring DIN...

“SPM CX” HEAVY DUTY TYPE FOR AIR CARGO, DEPOSIT, AND AIRPORT HANDLING UNITS Housing and cover cap in machined steel. Felt sealing system.* Inner ball race in AISI 420C hardened stainless steel, with a hole at the bottom to allow the drain of condensate and impurities. Housing available even on zinc plated steel, stainless steel Balls made of AISI 420C stainless steel. * Available even without felt sealing system if required. “SBM” HEAVY DUTY TYPE WITHOUT FLANGE Housing without flange in machined and hardened steel. Machined steel cover cap.* Felt sealing system.** Available in steel, zinc...

“SPS” TYPE LIGHT DUTY TYPE Housing and cover cap in zinc plated pressed metal sheet.* Inner ball race in pressed and hardened steel.* Felt sealing system.** Balls made of chrome steel, AISI 420C stainless steel, plastic material. * Available even with all components made of stainless steel. ** Except SPS 15 and types with the large ball in plastic material. “SPS DV” TYPE IN PRESSED METAL SHEET WITH FIXING HOLES p. 22 Housing in hardened and zinc plated pressed metal sheet. Holes on the flange for fixing by means of screws or rivets. Without felt sealing system to guarantee a better fluency....

“SPM” heavy duty type with flange dw dw • Housing with flange made of machined from rod and hardened steel, to guarantee high load capacities and higher resistance to strong conditions. • Reinforced cover cap made of machined steel (for SPM 12, 15 and 25 types made of pressed metal sheet). • Felt sealing system (except for SPM 12 and 15). • Drain hole at the bottom. Body made of steel, balls made of AISI 52100 chrome steel Body made of zinc plated steel, balls made of AISI 52100 chrome steel Body made of zinc plated steel, balls made of AISI 420C stainless steel Body, components and all the...

“SPM” heavy duty type with flange and big ball in plastic material dw dw • Housing with flange made of machined from rod and hardened steel, to guarantee high load capacities and higher resistance to strong conditions. • Reinforced cover cap made of machined steel (for SPM 12, 15 and 25 types made of pressed metal sheet). • Drain hole at the bottom. • Version with the big ball made of plastic material: - to handling particularly gentle surfaces as glass or crystal sheets, wood panels, painted or glazed pressed metal sheets, and so on;* - to guarantee a good fluency even in presence of light...