what are spindles used for

Why do we need spindles?

The spindle is a key component of a precision machine and it has significant impact on machined components in terms of form/dimensional accuracy and surface quality. Two types of spindles are most commonly used in precision machine tools, i.e., aerostatic bearing spindles and oil hydrostatic bearing spindles.

What does a spindle?

Definition of spindle (Entry 1 of 2) 1a : a round stick with tapered ends used to form and twist the yarn in hand spinning. b : the long slender pin by which the thread is twisted in a spinning wheel. c : any of various rods or pins holding a bobbin in a textile machine (such as a spinning frame)

What is a spindle used for lathe?

Lathe spindles are used for machine-cutting of workpieces. They can also be referred to as workpiece spindles, as the workpiece is clamped via the chuck of the lathe spindle. The rotating workpiece is machined by the tool attached to the driven machine axis.

What is a spindle in woodworking?

A spindle, in furniture, is a cylindrically symmetric shaft, usually made of wood. A spindle is usually made of a single piece of wood and typically has decoration (also axially symmetric) fashioned by hand or with a lathe.

What are the different types of spindles?

At the very basic there are three types of spindle: top whorl, bottom whorl and supported. The whorl is the disk or ball that provides the weight to keep the spin going. All three types are hand spindles. Top and bottom whorl are both types of drop or hand spindles.

What is a spindle in a house?

Balusters are the narrow rods or spindles that provide vertical support for the stair railing. They also act as a protective guard that prevents children from falling through the gap between the treads and the handrail.

How does a machine spindle work?

Spindles are electrically or air-powered devices that come in numerous sizes. Typically, there is a shaft that holds the tool together, a motor, and a taper used to control various tools. Then, the spindle rotates on an axis. The axis is controlled by commands coming from either a person or a computer.

What is the difference between a mandrel and spindle?

A mandrel is a spindle for supporting a workpiece when it is being machined. Conical and curved parts can be made by spinning them on a rotating mandrel. A mandrel is a workholder for turning that fits the inner diameter of workpieces. A mandrel is a spindle for supporting a workpiece when it is being machined.

Why is the main spindle of a lathe hollow?

The main spindle is generally hollow to allow long bars to extend through to the work area. This reduces preparation and waste of material. The spindle runs in precision bearings and is fitted with some means of attaching workholding devices such as chucks or faceplates.

Are spindles outdated?

Both a safety and style feature, your interior railing spindles are vital in connecting your home's overall aesthetic. However, many homeowners have outdated spindles in their space, and could benefit greatly from a new set. The most popular spindle type, wood spindles give a classic, clean feel to any home.

What is the difference between spindles and balusters?

A baluster and spindle is actually almost the same thing, but the word spindle is more commonly used because it is easier to remember and say. Balusters usually rest on a footing; this could be a step, floor or deck, whereas, spindles are supported by a horizontal rail at the bottom that is attached to the posts.

Can I use spindles as table legs?

Spindles have a similar aesthetic as table legs, but their length makes them ideal for creating a tall console table. They might look old-fashioned at first, but a little paint and stain can make all the difference.

What is a spindle in mitosis?

The mitotic spindle is the macromolecular machine that segregates chromosomes to two daughter cells during mitosis. The major structural elements of the spindle are microtubule polymers, whose intrinsic polarity and dynamic properties are critical for bipolar spindle organization and function.

What is spindle in human body?

Muscle spindles are stretch receptors that signal the length and changes in length of muscles. They lie within an independent capsule, parallel to the main muscle. They are therefore stretched when the muscle lengthens but shorten when the muscle contracts.

How do I know if my spindle is damaged?

So let's look at the signs to watch out for to tell if the mower deck spindle is bad or going bad.A Noise Coming from the Lawn Mower. ... An Uneven Cut to the Lawn. ... The Belt Keeps Falling Off. ... There's Visibly Something Wrong. ... An Unnatural Vibration in the Mower. ... Broken Parts Can Fall Off the Lawn Mower.

How much does it cost to replace a car spindle?

Spindles can cost anywhere between $75 and $400. The price largely depends on whether you're going to get an individual spindle or a pair. The spindle's price also varies because of the complexity of the design, which will depend on the vehicle's make and model.

What is grasped spindle?

Grasped spindles are also known as hand spindles, in the hand spindles, in hand spindles and twiddled spindles; there appears no consensus on nomenclature for this category of spindles though there have been various attempts at creating an agreed nomenclature including dividing this category of spindles into two, such as Crowfoot's attempts to define the difference between grasped and in hand spindles or merging this category into others, such as Franquemont's approach of classing them as supported spindles.

How does yarn affect spindle momentum?

Once a length of yarn or thread is spun it is wound around the spindle shaft or whorl to form a cop or a ball. As more yarn or thread is spun this makes the spindle heavier and more center-weighted, which has an effect on the momentum of the spindle.

Why are suspended spindles called drop spindles?

Suspended spindles are so named because they are suspended to swing from the yarn after rotation has been started. Drop Spindles are a popular type of suspended spindle and get their name because the spindle is allowed to drop down while the thread is formed, allowing for a greater length of yarn to be spun before winding on. Suspended spindles also permit the spinner to move around while spinning, going about their day. However, there are practical limits to their size/weight.

What is a spindle in spinning?

A spindle is also part of traditional spinning wheels where it is horizontal, such as the Indian charkha and the great or walking wheel. In industrial yarn production, spindles are used as well; see spinning jenny, spinning mule and ring spinning .

What is a spindle made of?

A spindle is a straight spike usually made from wood used for spinning, twisting fibers such as wool, flax, hemp, cotton into yarn. It is often weighted at either the bottom, middle, or top, commonly by a disc or spherical object called a whorl; many spindles, however, are weighted simply by thickening their shape towards the bottom, e.g. Orenburg and French spindles. The spindle may also have a hook, groove, or notch at the top to guide the yarn. Spindles come in many different sizes and weights depending on the thickness of the yarn one desires to spin.

What is a Turkish spindle?

A modern Turkish spindle is an example of a low-whorl suspended spindle where the whorl is made up of interlocking arms. Here the cop is wound around the arms to form a ball.

Why is the spindle lost to history?

The origin of the first wooden spindle is lost to history because the materials did not survive. Whorl-weighted spindles date back at least to Neolithic times; spindle whorls have been found in archaeological digs around the world.

What are some examples of monkeys?

Recent Examples on the Web: Noun Scientists have cloned certain monkeys, so primates are at least hypothetically still in the mix, despite the spindle proteins. — Caroline Delbert, Popular Mechanics, 11 May 2021 The researchers speculate that Netherton’s inhabitants deliberately placed other objects, like gaming pieces, a spindle whorl and a whetstone, near the dagger for practical or ritualistic reasons. — Isis Davis-marks, Smithsonian Magazine, 28 May 2021

What does "spindle" mean?

Definition of spindle (Entry 2 of 2) intransitive verb. 1 : to shoot or grow into a long slender stalk. 2 : to grow to stalk or stem rather than to flower or fruit. transitive verb. 1 : to impale, thrust, or perforate on the spike of a spindle file.

What is a spindle?

Definition of spindle. (Entry 1 of 2) 1 a : a round stick with tapered ends used to form and twist the yarn in hand spinning. b : the long slender pin by which the thread is twisted in a spinning wheel.

Why does my spindle seal fail?

• Spindle seals can also fail over time, leaving openings for other contaminants to enter.

How to tell if a spindle is bad?

Employees working on or near spindles can also be the first to detect signs of spindle trouble, often in the form of unusual noises such as rattling or grinding. The output of parts produced by the machine can also reveal problems, particularly if tolerances are off and not up to specification.

What is a motorized spindle?

A motorized spindle, which involves analyzing the motor, removing moisture, replacing the stator and windings, and other tasks, is more complicated and can take longer. A repaired spindle generally comes with a warranty. Chris Hetzer is a mechanical engineer, CEO and partner at Gilman USA LLC.

Why are robotic spindles important?

Due to the weight-power-speed ratios, robotic spindles can be sensitive to unpredictable loads. In the pharmaceutical industry, spindles drive high-precision mixers that ensure final drug consistency. Mixing spindles in these and similar applications incorporate stainless steel and food-grade grease.

Is vibration analysis effective?

In fact, vibration analysis is most effective at catching problems early.

What is a spindle with coolant feed?

Spindles with coolant feeds are also available. Machine tool spindles that are capable of axial, linear, or compound movements are used in some machining operations. Spindles with encoders or resolvers provide feedback about position and/or speed.

What is a spindle in a lathe?

Machine tool spindles are rotating components that are used to hold and drive cutting tools or workpieces on lathes , milling machines and other machine tools. They use belt, gear, motorized, hydraulic or pneumatic drives and are available in a variety of configurations. For example, cartridge assemblies are housed in a stationary enclosure while angled spindles are configured to allow right angle or adjustable tool rotation. Some machine tool spindles are housed in a solid block or box-like housing. Others are bolted down via flanges or feet at the bottom of the housing.

What is the measurement of a tool?

Tool mounting measurements such as outer diameter (OD) and inner diameter (ID) are measured in either English units such as inches or metric units such as centimeters. Spindle interface size is the diameter of the cutting tool or the bore of the grinding wheel to which the spindle is mounted. Tool or work holder mounting style describes the spindle’s mounting interface. Examples include standard, threaded, and flanged bores; arbors and shafts; collets and wheel collets; and external and internal tapers.

What are some examples of machine tool spindles?

In terms of features, some machine tool spindles include air purging or automatic balancing options. Others include high frequency drives that are liquid cooled for improved heat dissipation.

What is a tapping spindle?

Tapping spindles are used with taps to create internal threads. Tuning spindles are designed for horizontal or vertical lathes and turning centers. Hobbing spindles are used in the cutting of gear tooth profiles. Milling spindles are used with a wide variety of machining tools and operations.

Where are machine tool spindles located?

Some machine tool spindles are housed in a solid block or box-like housing. Others are bolted down via flanges or feet at the bottom of the housing. Most machine tool spindles that fit the heads of cutting tools feature a Morse taper or other standardized machine tool taper.

What is the function of drilling spindles?

Drilling spindles provide good thrust capacity and radial load ratings.

What Do You Mean By Spindle?

Every era of house design has specific markers. Some markers carry on for years because of their charm and functionality. Spindles are one of those markers. You can find spindles on the staircases of old-style houses.

Are Spindles Outdated?

Spindles are a classic feature in houses and deck decor. They’ve been a mainstay in building for years. To that extent, some people adopting a newer building standard say spindles are a relic of the past. However, that is up for debate.

What is an overhead rack?

An overhead kitchen rack is an ambitious old deck spindle repurpose DIY. You have a few options with the kitchen rack. You can either use the full railing or take a few old deck spindles and add the top sections that you will drill into your kitchen ceiling.

How to make a ladder out of wood?

You can use as many as you want if you have a lot of kitchen towels. Take two straight wood planks and drill thin deck spindles into the planks like you are making a ladder.

What is a spindle in a house?

Spindles are wooden support beams placed at equal distances apart from each other to support a staircase. In indoor decor, they are not only used as support. They are also a decorative statement that allows the homeowner to bring in some style to the house.

What is repurposing spindles?

Repurposing spindles is all about creativity. As long as your spindles are still structurally strong and undamaged, you can make fun functional decorative items around the house and for your exterior, too.

What is a garden trellis?

A garden trellis is a structure you use to help plants support themselves as they grow vertically. Climbing plants are popular in home gardens, making a garden trellis a helpful frame for home gardening projects. For this, use metal spindles. Paint the trellis in rust-resistant paint to get the best out of it.

What is a teacup spindle?

Named for the whorl's appearance of a tea cup nested in its saucer, the Teacup is a lightweight hybrid support spindle designed for those who find most Tibetan style spindles too heavy or difficult to flick, but prefer a longer spin time than found in a typical Russian style spindle. The slender shaft and rim-weighted whorl produce an agile spindle with an effortless yet sustained spin appropriate for a wide variety of spinning styles and fibers. These spindles are generally between 0.5 and 1.25 oz (15 to 38 grams) and spin times are typically between 20 and 45 seconds. Whorls are around 1 1/2" in diameter and are available with designs painted onto or burned into them, and are also available in "specialty" woods such as burls without an embellished design. Teacups with whorls made from denser woods have more hollowed out whorls to keep the weight down and will typically have longer spin times than Teacups with whorls made from less dense woods due to increased rim weighting.

How long does it take for a Phang to spin?

They also have the same fine flicking tip as our other spindles for a nice, fast spin. Spin time is typically between 10 to 20 seconds and weight is between approximately 1 and 2 oz depending on the wood used.

What is a top whorl drop spindle?

Our top whorl drop spindles are designed to provide a fast, long, and balanced spin. In contrast to support spindles, it is more important to use a drop spindle of an appropriate weight. If too light of a spindle is used to produce thicker yarn, it may have insufficient momentum to achieve a sustained spin or properly twist the fiber, and too heavy of a spindle can break thinner yarn. Heavier drop spindles are also sometimes preferred for plying. Our drop spindles are typically between 0.75 and 2 oz (20 to 55 grams) depending on the wood (s) used. Here are some of the features of these spindles:

How fast is a dewdrop?

Also, the large "head" gives it a different feel than the other spindles. These spindles are typically between 0.75 and 1.5 oz (20 to 40 grams) depending on the wood used. A lower density wood is recommended to keep the spindle lightweight and easy to flick.

How long does it take for a bead spindle to spin?

Bead spindles spin similarly to the Teacups, but with a little shorter spin time (typically between 15 and 30 seconds). Burls are often used for the whorl, as the spherical shape is ideal for displaying the spectacular figure in these woods. These spindles are generally between 0.75 and 1.5 oz (20 to 40 grams).

What is a support spindle?

Support spindles (also called supported spindles) are spun on a surface, often in a wooden or ceramic bowl specifically designed for that purpose. With the spindle supported, the spin can be more carefully controlled and the weight of the spindle is not as big of a factor compared to a drop spindle. Support spindles also tend to work better than drop spindles for spinning fine yarns and/or those with short staples. Although different types of support spindles are best suited to different spinning styles and weights of yarn, in skilled hands any type of spindle can be used to produce nearly any type of yarn.

What is a woodworking spindle?

Woodland Woodworking spindles are high precision tools. A great deal of care is taken to ensure the shafts are perfectly straight and they all feature a fine flicking tip for fast spinning. Spindles with separate whorls are balanced internally (i.e. there are no visible balancing pins) with weights as small as 0.01 oz to ensure a smooth, wobble-free spin.

Overview

Hand spindles

History

Anatomy

Cultural references

Types

See also

External links