QA

How To Measure A Trolling Motor Shaft

Measure down from the mounting surface of the transom or bow to the water level. Add 5″ to waterline measurement for fishing in rough water. Add 12″ to waterline measurement for steering a hand control motor while standing. Use this measurement and the tables below to find the appropriate trolling motor shaft length.

How do you measure the shaft length on a bow mount trolling motor?

Bow Mount Shaft Length Start by measuring the distance from the horizontal mounting point on the bow to the waterline, then add 20″ to this measurement. Generally, you will want a shaft length that is equal to or greater than this sum, but not less.

What is the shaft on a trolling motor?

The shaft is the part of the trolling motor between the head and the prop. Using a tape measure, measure that distance. Record the distance, noting that the length of most trolling motor shafts are in increments of 1 foot (such as 36 inches, 48 inches or 60 inches).

How do you measure the diameter of an electric motor shaft?

The frame number relates to the “D” dimension (distance from center of shaft to center bottom of mount). For a two digit frame divide the frame number by 16 to arrive at this dimension. For example, in the two-digit 56 frame, the “D” dimension is 3½” (56 divided by 16 = 3½”).

How is shaft width measured?

The shaft width is measured at the greatest measurable circumference around the shaft of the boot. This applies to mid-high and high boots, and is most often measured in the calves.

How do you measure the shaft length on an outboard motor?

To measure your outboard motor shaft length, measure from the bottom of the mounting bracket where it rests on the transom to the top of the cavitation plate, this is the horizontal surface of the lower unit immediately above the propeller.

Can a trolling motor shaft be too long?

A trolling motor shaft can be too long. If the trolling motor shaft is too long, you risk the propeller hitting bottom or the inability to stow the motor properly. Too long of a shaft can not only damage the propeller but also the rest of the motor and the environment beneath the water as well.

What is the diameter of a Minn Kota trolling motor shaft?

The diameter of the Endura shaft is 1-1/8″ (1.125″ ).

How do you measure the shaft length on a Minn Kota trolling motor?

Measure down from the mounting surface of the transom or bow to the water level. Add 5″ to waterline measurement for fishing in rough water. Add 12″ to waterline measurement for steering a hand control motor while standing. Use this measurement and the tables below to find the appropriate trolling motor shaft length.

How do I know if my boat motor is long or short shaft?

Measure from the top of your transom to the bottom of your keel. If it is from 15″ to 17″ long you’ll need to get a Tohatsu outboard with a “short” shaft. If it is from 20″ to 22″ long you’ll need our “long” shaft outboard.

Can you run a short shaft outboard on a 20 inch transom?

zike Elite Refuge Member If you set the motor back far enough without jacking it up, a short shaft will work on a 20″ transom. Never argue with idiots as they will do nothing but bring you down to their level and then beat you with experience.

How does Minn Kota measure shaft length?

Measure down from the mounting surface of the transom or bow to the water level. Add 5″ to waterline measurement for fishing in rough water. Add 12″ to waterline measurement for steering a hand control motor while standing. Use this measurement and the tables below to find the appropriate shaft length.

How deep should my trolling motor be in the water?

The rule of thumb is that the top of the motor section should be submerged 12″. In general, shaft length selection is more critical with bow-mount motors versus transom-mount motors. Most boat transoms are similar in their distance to the water, and Minn Kota’s standard transom shaft lengths should be adequate.

How big of a boat can a trolling motor push?

Trolling Motor Thrust Guide Boat Weight (lbs) 1,500 2,500 Boat Length 14-16′ 18′ Minimum Thrust 55 70 Performance Thrust* 55 80 Motor Voltage 12v 24v.

What size shaft is on a 56 frame motor?

A 56 frame size motor will have a dimension from the rotor shaft centreline to the underside of the motor feet of 3 ½” and a shaft diameter of 5/8”.

What is the diameter of a 48 frame motor?

NEMA FRAME D* U> 48H 3 1/2 56 3 1/2 5/8@ 56H 3 1/2 5/8@ 56HZ 3 1/2 7/8.

What does C face mean to a motor?

C-Face Design: Having a flat surface machined onto one side allows for direct-coupling with equipment while the weight of the motor is cantilevered with the help of a heavy duty flange. Of course, this method is not useful for large motors and is rare in HP ranges over 20HP.

What tool do you use to measure a shaft?

Shaft measurement can be performed with a variety of metrology tools, from handheld devices such as micrometers and snap gages to high-end coordinate measuring machines (CMMs).

What is a shaft size?

The shaft tip size is the the diameter of the tip portion of the shaft. For irons, this will usually be 0.370″ (parallel) or 0.355″ (tapered). For woods, it will be either 0.335″ or 0.350″. To choose the tip size needed, you’ll want to match it with the ID (inside diameter) of the hosel of the golf club head.

How do you measure the diameter of a prop shaft?

Information and Chart to Determine Prop Bore Size, Shaft Diameter & Taper First measure the full shaft diameter (not the taper) with calipers. When measuring the shaft taper diameter, get as close to the small end of the taper as possible. When measuring the propeller bore, you must measure the SMALL HOLE END.