BM – spiral bevel gear boxes

Product catalog summary

Overview: The document provides detailed technical specifications and features of EPPINGER's BM series bevel gear boxes, highlighting their design, performance, and application suitability.

Housing Design: The gear boxes feature a single-component housing that ensures precision in axes and bearing seats. The compact design allows for high power density and offers options for direct connection to planetary gear box pre-stages and secure motor flange mounting. Mounting threads on all sides facilitate stable attachment in various positions.

Gear Design: The bevel gears are manufactured using the Gleason process, ensuring optimal gearing efficiency, high transmission precision, and reduced bearing stress. The gears have a friction-locked, zero backlash connection, enhancing performance and reducing mass.

Shafts and Bearings: The gear boxes use steel alloy shafts with precise bearing seats, supporting heavy-duty taper roller bearings. Bearings are precisely positioned using ground steel shims and splinting of inner rings.

Range and Performance: The BM series is available in five sizes with a ratio of i = 1:1. They can be supplied with solid or hollow shafts, offering high efficiency and reduced energy costs. The series is designed for applications requiring compact dimensions and maximum torque transfer.

Performance Data: The document includes detailed performance metrics such as rated output torque, emergency stop torque, input speed, permissible radial and axial loads, torsional backlash, efficiency, operating noise, service life, and thermal limit ratings. These metrics are provided for each gear box size.

Thermal Limit Rating: The thermal limit rating defines the transferable output during continuous operation at a maximum oil bath temperature of 90°C. Correction factors for drive speed, switch-on time, and ambient temperature are provided to determine permissible thermal limit ratings for intermittent operation.

Design Specifications: Detailed dimensions for both solid and hollow shaft designs are provided, including measurements for various components and thread specifications.

Conclusion: EPPINGER's BM series bevel gear boxes are designed for precision and efficiency, suitable for a wide range of applications requiring compact and high-performance gear solutions.

Catalog excerpts

BM – spiral bevel gear boxes Solid and Hollow Shaft Design Cycloid Gearboxes Planetary Gearboxes Bevel Planetary Gearboxes Bevel Gearboxes Hypoid Gearboxes Hypoid Helical Gearboxes Gear Motors Gear Development

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EPPINGER BM bevel gear boxes The BM series of bevel gear boxes is predestined for all gear box applications which require compact dimensions and maximum torque transfer at best efficiency rates. Precision of the axes and bearing seats, combined with Gleason bevel gears to take high loads, are the basis for minmized tooth clearance and optimal transmission properties. Presently the gear boxes are available in 5 sizes, each with a ratio of i = 1 : 1. FEATURES AND BENEFITS OF THE NEW BM BEVEL GEAR BOX SERIES THE HOUSING: s ingle-component housing with maximum precision of axes and bearing seats,...

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Performance data Abbreviation Rated output torque Rated input speed Emergency stop torque Max. permissible axial load 4 Torsional backlash output shaft arcmin arcmin Efficiency at rated load Service life standard reduced Max. permissible radial load 3, 4 Synthetic oil, ISO VG 150 (up to size 140 incl.) Operating temperature As-delivered condition Housing and flanges burnished black Mass moment of inertia 8 Upon request 1000 x permissible short overload peaks during service life of gear boxes requires special measures referred to center of shaft journal 4 reduced values for nominal torque/nominal...

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Solid Shaft Design L5 M1 Seite 3 Seite 5 side 5 Solid Shaft Design (dimensions in mm) BM090 * Thread in shaft end acc. to form DS, DIN 332

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Hollow Shaft Design L5 M1 Seite 3 Seite 5 side 5 Hollow Shaft Design (dimensions in mm) BM075 ☐A * Thread in shaft end acc. to form DS, DIN 332

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EPPINGER precision gear boxes at a glance EGT Eppinger Getriebe Technologie GmbH · Breitwiesenweg 2 - 8 · 73770 Denkendorf, Germany · Tel. +49 711 934934 - 626 · Fax +49 711 934 934-627 · [email protected] · www.eppinger-gears.com Ars Cordis 10/2017 – Subject to change Our product range includes besides bevel-, hypoid-, planetary- and cycloidal gear boxes also special customized gear boxes and high precision gear technology. With our gear motors and integrated combinations of our gear box series we extended our portf

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