cylindrical roller

Product catalog summary

Company Overview: RGP International SRL, established in 1973, is a leading global manufacturer of precision balls, cylindrical rollers, needle rollers, and ball transfer units. The company operates a 10,000 square meter facility in North Milan, employing 60 people locally and 420 worldwide. RGP is ISO 9001:2008 and ISO 14001:2004 certified, ensuring high-quality standards and environmental management.

Product Specifications: RGP produces precision cylindrical and needle rollers in various types, including NRA (round ends), NRB (flat ends), ZB (logarithmic profile), TR (ground ends), and TP (flat unground ends). These products are manufactured according to UNI/DIN standards and can be customized based on customer drawings. The rollers are available in a wide range of dimensions and precision grades.

Materials Used: The rollers are made from various materials, including AISI52100/100Cr6, AISI304, AISI316, AISI420C, AISI430, AISI440C, Silicon Nitride (Si3N4), Aluminum Oxide (Al2O3), and Tungsten Carbide. Each material offers specific properties suitable for different applications, such as automotive, aeronautics, and bearings industries.

Technical Data: The document provides detailed technical specifications, including diameter and length tolerances, precision grades, roundness, roughness, and sorting groups. For example, diameter tolerances are typically +0/-10 μm, and length tolerances vary based on the size range.

Certifications: RGP holds certifications for ISO 9001:2008 and ISO 14001:2004, verified by TÜV Hessen, ensuring compliance with international quality and environmental standards. These certifications cover the production of precision balls, cylindrical rollers, needle rollers, and ball transfer units.

Contact Information: RGP International S.R.L. is located at Via Aldo Palazzi, 8/B, 20092 Cinisello Balsamo (MI), Italy. They can be contacted via phone at +39 02/617.88.57 or email at [email protected]. More information is available on their website, www.rgpballs.com.

Catalog excerpts

PRECISION CYLINDRICAL ROLLERS & NEEDLE ROLLERS MANUFACTURERS, OF PRECISION BAILS ROLLERS & NEEDLE ROLLERS

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COMPANY PROFILE “NRB” TYPE - FLAT ENDS L D L D h “ZB” TYPE - LOGARITHMIC PROFILE Ra “TR” TYPE - GROUND Ra ENDS Our Engineers will be glad to suggest the most appropriate choice of materials for any specific applications. Type of available rollers: ● NRA rollers ● NRB rollers ● ZB rollers ● TR rollers ● TP rollers ● Rod ends rollers ● Conical rollers ● Special rollers on request ● Needle rollers according to UNI/DIN standards D ● Needle rollers for burnishing / vibro finishing / polishing Materials: ● AISI52100/100Cr6/W 1.3505 ● AISI304/W 1.4301 ● AISI316/W 1.4401 ● AISI420C/W 1.4034 ● AISI430/W...

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TECHNICAL DATA “NRA” TYPE Round ends “NRB” TYPE Flat ends “ZB” TYPE Logarithmic profile 3 mm Smaller 1 mm 1 mm diameter Larger 10 mm 10 mm 80 mm diameter Diameter +0/-10 μm +0/-10 μm +0/-10 μm tolerance * Minimum 5,8 mm 5,8 mm 4 mm length Maximum 59,8 mm 59,8 mm 120 mm length * tolerances available on request -10/-20 μm ÷ -20/-30 μm 0 ÷ 3 mm 0 ÷ 3 mm +0/-140 μm +0/-140 μm 3 ÷ 6 mm 3 ÷ 6 mm 3 ÷ 15 mm +0/-180 μm +0/-180 μm +0/-30 μm 6 ÷ 10 mm 6 ÷ 10 mm 15 ÷ 50 mm +0/-220 μm +0/-220 μm +0/-50 μm LENGTH 10 ÷ 18 mm 10 ÷ 18 mm > 50 mm +0/-270 μm +0/-270 μm +0/-80 μm TOLERANCES 18 ÷ 30 mm 18 ÷ 30 mm...

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PAGE 1 OF 1. This certification was conducted in accordance with the TÜV PROFiCERT auditing and certification procedures and is subject to regular surveillance audits. Verifiable under www.tuev-club.de. Original certificates contain a glued on hologram. TÜV Technische Überwachung Hessen GmbH, Rüdesheimer Str. 119, D-64285 Darmstadt, Tel. +49 6151/600331 Rev-GB-1301 EN ISO 14001:2004 Evidence of conformity with the above standard(s) has been furnished and is certified in accordance with TÜV PROFICERT procedures for R.G.P. INTERNATIONAL S.r.l. Registered Office: Via Ugolini,3 - I - 20125 Milano...

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Copyright RGP International S.r.l. / v032014 Copyright RGP International S.r.l. / R012014EN R.G.P. INTERNATIONAL S.R.L. VIA ALDO PALAZZI, 8/B 20092 CINISELLO BALSAMO (MI) - ITALY PHONE +39 02/617.88.57 - +39 02/66.01.70.32 FAX +39 02/66.01.66.88 e-mail: [email protected] w w w . r g p b a l l s . c o m

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