Lowering Link A2 Speed

This is what a Brunswick pinsetting machine looks like setting pins with a lowering link at A2 speed.

Category:

Sports

Tags:

• Bowling
• Brunswick
• Pinsetter

[izzynutz2000]

Run them all on 5 1/4 "A" sheves.... Wether it iz a G.E. or a Bell & Howell ,a Jap Mitsubishi or a Leeson 1HP or ! 1 1/2 HP, They all run at 1750 rpm The diffrence between a 1HP and 1 1/2 HP Iz not speed.... It's tourqe... They both run at 1750 RPM.

Izzy

Izzynutz Restorations

[BrunsAce]

@Bill25cycle Also on the 1 or 1.5HP motors, one thing to take into consideration is the power factor of the motor. The power factor kind of equates to the amount of torque the motor provides.

[BrunsAce]

@Bill25cycle Apparently 1HP was enough. The Japanese pinsetters were the best example of this. They used a huge 9+" motor pulley and ran at normal, fast, A2 speed when on a 50HZ power grid with a 1HP motor. These motors ran somewhere in the neighborhood of 1400RPM on 50HZ. The motors turn at the normal 1750RPM on 60HZ. That required a pulley change when many of those machines were imported here to the US as the machines cycled way too fast and damaged themselves.

[Bill25cycle]

@BrunsAce Thanks BrunsAce for the quick response... I wonder about some of the after market motors though. I've seen a used Leeson brand 1 1/2 hp motor offered for replacement by aftermarketers on a few sites. Since these machines were sold in europe with no changes other than the drive pulley, and since 50 hz operation lowers the strength of the motor by at least 5/6ths, I thought that machines 'sold' at A2 (fastest) speed would get 1 1/2 hp motors to be sure they would work in europe.

[BrunsAce]

..ans 1750RPM for the motor is correct.

[BrunsAce]

@Bill25cycle As far as I know all of the A/A2 pinsetters use a 1HP motor to drive them. The only thing used to change speeds is the pulley used, or in some cases a different input gear ratio (60:1 or 27:1) on the main gearbox.

The Jetback model actually used a 3.75" sheave on the motor for the elevator section to speed things up. Tings have changes with the decline in league play and most mechanics are slowing their pinsetters down to reduce parts wear.

[Bill25cycle]

@DethRai Hi I'm not a bowling mechanic or anything just an interested bowler.... The main machine is driven by a 1 or 1 1/2 horsepower 1750 revolution per minute motor ( I believe a's and jetbacks were 1 hp, a2's 1 1/2 hp ( can anyone confirm this? ) with the difference being the gearbox sheave on the 'a' was 5 1/4" and the a-2 being 7 3 /4". Its a dual sheave pulley on the drive motor so the pin elevator belt always ran off of a 3" sheave on all models, but then I just sumized this from these

[DethRail]

im a begginer learning machines. my center has A2's also. how do you increase/decrease the pinsetter's speed?

[mook1028]

We normally run A speed, but tried an A2 pulley on a machine that was adjusted close to perfect in everything. The deck shifts so hard on the original Moving Deck Cam. We ran 2 cycles and were scared something would break. Pretty interesting comparison though.

[ke3wh]

I love a fast A2