Flender/Flender Gear Units/Bevel-helical gear boxes B3
oil; cooling water input temperature Cooling unit Oil/air Oil/water Heating, with temperature monitoring = , Hz, IP Direction of rotation

of low speed shaft: Clockwise Counterclock- wiseBackstopto mm Tol. mm mm Tol. mm LSS HSS ATEX application? Yes No If

yes, please fill in ATEX checklist Flender GmbH 2NER GROUP CO.,LIMITED Germany sogears HB series gearbox 3/3 Flender MD 2.1

2 3Design of the gear units Guidelines for selection Constant mechanical power rating Overview 1. Determination of gear unit type

and size 1.1 Determination of the ratio 1.2 Determination of the nominal power rating of the gear unit It is not necessary to consult us, if: 1.3 Check for maximum torque ..: Peak operating, starting torque or torque of brake Gear unit sizes and number of stages are given in rating tables depending on iN and P2N. 1.4 Check of whether additional forces on the low speed shaft (LSS) are permissible; it is essential to consult Flender! 1.5 Check whether the actual ratio is suitable, see pages 3/7 to 3/7.2. Determination of oil supply: Horizontal mounting position () Dip lubrication (all parts to be lubricated are immersed in the oil or are splash lubricated) Oil circulation lubrication by means of flange-mounted pump (type H1 only) Vertical mounting position () Dip lubrication with oil expansion tank Forced lubrication on request Upright mounting positions Dip lubrication with oil expansion tank Forced lubrication on request 3. Thermal factor Kth Depending on the application, it is not the gear unit nominal power rating that is used for determining the required size of the gear unit on the basis of the thermal capacity, but lesser rated output based on the typical load curves. This is taken into ac- count via the thermal factor Kth. See page 3/1.n1 n2is = P2N P2 f1 f2 3.3 P2 P2N TA n1 9P2N f3 Flender GmbH 2NER GROUP CO.,LIMITED Germany sogears HB series gearbox 3/4 Flender MD 2.1 2Design of the gear units Guidelines for selection Constant mechanical power rating Ov