Standard Motor Catalog

Section TR Technical Reference Guide

Table 28: Limiting Sheave Dimensions for V-Belt Drive Typical 500 Frame Data Dripproof Horsepower @ RPM Bearing Construction Min. Sheave Dia. (in) 1200 900

1800

Belt Pulls (lbs)

- - - - -

- - -

150 200 250

(1) (2) (2) (2) (2) (2) (2) (1) (1) (2) (1) (2) (2) (1) (2) (2)

16.5

2200 5500 3600 5200 3700 4900 3200 2100 2100 3800 2100 3100 4400 1800 4100 3800

9

17

250 300

- - - -

9

15

300 350

- -

7.5

13.5

TEFC Motors

- - - - - - - - -

- - -

125 150

14.5

18 13 18 15

- - - - - - -

200 250

250*

10.5 17.5

- - -

9

11.5

* for 5011L frame size (1) Deep groove ball-bearing construction (2) Special sh aft materials and roller-bearing construction Notes: 1. Minimum bearing life, L 10 , for a given sheave diameter is 25,000 hours 2. T he recommended sheave diameters are based on a 5:1 speed reduction and a sheave center-to-center distance approxi mately equal to the diameter of the larger sheave. CAUTION: BELT SPEEDS IN EXCESS OF 6500 FEET PER MINUTE MAY REQUIRE SPECIAL SELECTION OF DRIVE COMPONENTS. MOTOR USER SHOULD GET SPECIFIC APPROVAL FROM BELT AND SHEAVE SUPPLIER FOR SUCH APPLICATIONS.

TECHNICAL REFERENCE GUIDE

TR.32

Data subject to change without notice. 03/24 • www.wolongamerica.com