OTT worm and wheel gears
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Zahnradfertigung OTT ...toothed innovations! OTT - Worm Gears PATENTED PRECISION WORM GEAR Zahnradfertigung OTT GmbH & Co. KG Blöhsteinstraße 20 D-72411 Bodelshausen www.zahnrad-ott.de info@zahnrad-ott.de

This document was compiled with great care and checked for accuracy. However, no liability is assumed for incorrect or incomplete information. We reserve the right to make changes as a result of the continuous development of our products. Our deliveries, services and offers are based exclusively on our General Terms and Conditions. All copyrights and rights of use lie with Zahnradfertigung OTT GmbH & Co. KG. The transmission, reproduction or other usage, including extracts thereof, is permitted only with our express agreement. Last updated: 2007

Company profile Zahnradfertigung Ott is a family business founded in 1957. Top quality, reliability and expert advice are basic values for our company. At Ott, our top priority is to implement such aims in daily business with our customers. This applies not just to standard manufacturing processes, but also to customised designs. Our services include the cutting of your gears, shafts, coupling components and hollow gears, and the complete manufacture of these components to your drawing or sample. You will find our manufacturing options in the manufacturing programme. With our range of worm...

Type G1 Gear Catalogue Blöhsteinstraße 20 D-72411 Bodelshausen ________________________________________________________________________ OTT worm gear classification OTT worm gears are characterised by their extremely high rotational accuracy. To achieve this requirement, the gear must have a high contact factor. That means many teeth and faces on the gear and worm parts being in contact. This is achieved in gear manufacturing by choosing a low pressure angle and high tooth flanks (high toothing). The flank clearance of OTT worm gears is also easy to adjust during new installation or after...

Section in plane of rotation of worm gear with line of action OTT worm gears materials in this catalogue The shank worm and hollow worm are machined in 31CrMoV9 steel and are plasma nitrided. The worm gears themselves are generally made of GZ-CuSn12Ni bronze. Note: In the case of larger centre distances, especially, the worm bearings limit the permitted load on the gears. If this is the case, appropriate worm shanks and bearings need to be developed. YRT gear bearings Important: In this catalogue, gear bearings are based on the YRT bearing from INA. Before selecting a YRT bearing, please...

Type G1 Gear Catalogue Blöhsteinstraße 20 D-72411 Bodelshausen ________________________________________________________________________

OTT worm gears - centre distance 67 mm Main dimensions Gear YRT gear Internal Ø Head Ø Width Collar Ø bearing D E F G 44,6

Type G1 Gear Catalogue Blöhsteinstraße 20 D-72411 Bodelshausen ________________________________________________________________________ Required internal contour of gear ho using for centre distance 67 mm Gear housing - required internal contour

REQUEST ORDER Gearset incl. all bearing p arts Gearset incl. thrust piece without bearing parts Order using ………. set of OTT worm gears Worm gear Shank worm Hollow worm Worm bearing for centre distance 67 mm Name Axial cylinder roller bearing Radial needle bearing Shaft seal Shrink disc Circlip Cylinder bolt DIN 912 Cylinder bolt DIN 912 Cylinder bolt DIN 912 Retainer ring DIN 472 Bearing sleeve Axial bearing washer Cover Thrust piece Bearing parts per gear

Type G1 Gear Catalogue Blöhsteinstraße 20 D-72411 Bodelshausen ________________________________________________________________________ Operational characteristics GZ-CuSn12Ni Material, gear Material, worm 31CrMoV9 Pressure angle in NS 10 ° Back angle in NS 20 ° Calculated circle Ø 38.90 mm Lead angle at Bks 3.7522 ° Centre distance Outer Ø worm Outer Ø gear No. starts, worm Worm direction No. teeth, gear Operating characteristics Ott worm gear 240 Recalculate axial bearing in accordance with drive application! See note on page 5. Max. permitted gear torque in Nm at 25,000 full load hours...

GZ-CuSn12Ni Material, gear Material, worm 31CrMoV9 Pressure angle in NS 10 ° Back angle in NS 20 ° Calculated circle Ø 36.68 mm Lead angle at Bks 3.2778 ° Centre distance Outer Ø worm Outer Ø gear No. starts, worm Worm direction No. teeth, gear Operating characteristics Ott worm gear 240 Recalculate axial bearing in accordance with drive application! See note on page 5. Max. permitted gear torque in Nm at 25,000 full load hours Series R1 Series R2 Series R3 Series R4 Series R5 Worm speed Worm drives: Gear drives: Gear selection by load type and application Gear speed Contact speed Breakaway...

Type G1 Gear Catalogue Blöhsteinstraße 20 D-72411 Bodelshausen ________________________________________________________________________ GZ-CuSn12Ni Material, gear Material, worm 31CrMoV9 Pressure angle in NS 10 ° Back angle in NS 20 ° Calculated circle Ø 35.18 mm Lead angle at Bks 2.6142 ° Centre distance Outer Ø worm Outer Ø gear No. starts, worm Worm direction No. teeth, gear Operating characteristics Ott worm gear OTT no: 4859 SSR Recalculate axial bearing in accordance with drive application! See note on page 5. Max. permitted gear torque in Nm at 25,000 full load hours Series R1 Series...

GZ-CuSn12Ni Material, gear Material, worm 31CrMoV9 Pressure angle in NS 10 ° Back angle in NS 20 ° Calculated circle Ø 34.21 mm Lead angle at Bks 2.2689 ° Centre distance Outer Ø worm Outer Ø gear No. starts, worm Worm direction No. teeth, gear Operating characteristics Ott worm gear OTT no: 4830 SSR Recalculate axial bearing in accordance with drive application! See note on page 5. Max. permitted gear torque in Nm at 25,000 full load hours Series R1 Series R2 Series R3 Series R4 Series R5 Worm speed Worm drives: Gear drives: Gear selection by load type and application Gear speed Contact...