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A small charge added to the purchase price and subtracted from the selling price by the dealer for odd-lot quantities.


1. The degree of change in quality of the underlying asset on a futures contract that is allowed. Every futures contract specifies the quality of the commodity underlying it that must be delivered in order for the seller to fulfill the contract. The differential allows the seller to deliver a good of a different quality, at least within certain limits. Not all futures contracts allow for differentials.

2. A change in the location of delivery that some futures contracts allow the seller to make at his/her discretion.


1. In commodities trading, the premium or discount in the futures contract price caused by delivering a commodity that does not exactly meet the standards fixed by the exchange. Allowances for these differentials are included in the contract specifications.
References in periodicals archive ?
Graphic dependences of the efficiency of the differential gear transmission [[eta].
To identify the impact of lowering viscosity, two modes of differential gear unit-stand tests were conducted with four oil samples having different viscosities and additive formulations, as summarized in Table 1.
As simple as it is, very few owners change the differential gear oil until they hear noises, very bad noises.
In both cases, whether in using a differential gear system or the above invention, the input torque equals the sum of all outputs.
Astronomy expert Prof Edmunds and his team found the device, a bronze calculator, used differential gears, previously thought to have been invented in the 16th century.
Optimal component placement-moving the differential gear forward (see above) and positioning the steering gearbox higher-allowed for a compact engine compartment.
Tenders are invited for Set Of Stud For Differential Gear Box Assemly Of Tower Wagon Mark-Ii, Consist Of 1 Stud To Size 16Mm Dia X 195 Mm Long, 30Mm Threading At Both End, Material En-8 Qty-01 No.
the existence of the two closed kinematic chains requires in their structure a relatively large number of mechanisms, which contributes to the substantial increasing of the errors of kinematic and dynamic nature, the differential gear and change gears having one of the most influential contributions.
It consists of large and strong Driving Wheels, Open Cog Main Gear Wheels, a Three Pinion Compensating or Differential Gear, and our improved Friction Belt Attachment.
In 1876 the successful Coventry tricycle was introduced and the following year saw James Starley's greatest contribution to engineering design - the differential gear, the principle of which is now legend and incorporated into millions of motor cars.
Instead of a planetary gear, the Estima Hybrid uses a CVT (continuously variable transmission) in a compact front transaxle to transmit main motor energy, and adds a rear transaxle which combines a second motor and differential gear in a single unit, for a lightweight, compact structure that enables 4-wheel drive without a driveshaft.
James Starley invented the differential gear which is still a design feature of motor vehicles today.

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