Gear box Design

SERVICE FACTOR: 1

Gears:1. Service Factor: 12. Motor specifications:

I. Motor speed: 1750 RPMII. Motor Power: 2.5 HP

3. Diametric pitch of Gears: 124. Pressure Angle: 14.5 degrees5. According to table on page 41 of “BOSTON GEAR Open Gearing” catalog, the pinion

should have 14 teeth.6. Pinion feature:

I. Teeth: 14II. Pitch Diameter: 1.167

III. Bore Size: 0.5 inchesi. Does not have keyway according to “†” note on page 10 of catalog, only has

one set screw.

IV. Hub:

i. Diameter: 0.92 inches

ii. Projection: 0.5 inches

iii. Face: 0.75 inches

V. Catalog and Item number: ND14B-1/2†, 46063

7. Output desired speed: 613 RPM

I. Gear Ratio: 1: (1750/613) = 1:2.855

8. Driven gear Feature:I. Teeth of driven gear: 2.855 X 14 = 39.967 = 40 teeth

II. Pitch Diameter: 3.333

III. Bore size: 0.625 inches

IV. Hub:

i. Diameter: 2.34 inches

ii. Projection: 0.62 inches

iii. Face: 0.75 inches

V. Catalog and item number: ND40A, 10280

i. No Keyway gears available

Couplers and shafts:1. Input shaft:

I. Coupling Insert required:

i. XFCA POLYURETHANE INSERTS FC12 (Speed: 1750 RPM, Maximum Horsepower rating: 3HP)

ii. Catalog and Item number: XFCA12 and 08050

II. Coupler:i. Size: FC12

ii. Catalog and Item number: FC12–1/2 and 08250

iii. Insert 3 Jaw Type2. Output Shaft:

I. Coupling Insert Required:i. XFCA POLYURETHANE INSERTS FC 15 (Speed: 690 RPM, HP: 2.5)

ii. Catalog and Item number: XFCA15 and 08052II. Coupler:

i. Catalog and Item number: FC15–5/8 and 08254ii. Size: FC15

iii. Insert 3 Jaw Type

Bearings:1. Input shaft:

I. R8II. http://www.skf.com/ca/en/products/bearings-units-housings/ball-bearings/deep-groove-

ball-bearings/single-row-deep-groove-ball-bearings/single-row/index.html?prodid=1070020008&imperial=false

2. Output shaft:I. RLS 5

II. http://www.skf.com/ca/en/products/bearings-units-housings/ball-bearings/deep-groove- ball-bearings/single-row-deep-groove-ball-bearings/single-row/index.html?prodid=1070011070&imperial=false