12 DP Imperial Spur Gear – 14.5° PA, 11–72 Teeth
- Model
- 12DP Spur Gear
Item specifics
- Material
- Carbon Steel
- Color
- Natural
- Surface Treatment
- Shot Peening/Heat Treatment/Grinding
- Accuracy
- Precision teeth for optimum performance
- Quality
- Superior Imperial Spur Gear
- Interchangeability
- Directly interchangeable with other brands
Review
Description
About 12DP Imperial Spur Gear
A 12 DP spur gear is an inch-series (imperial) gear with 12 teeth for every inch of pitch diameter, cut to the AGMA 14.5° pressure angle and supplied in steel with a single-sided Type B hub. The range on this page runs from 11 teeth (0.917 in pitch diameter) to 72 teeth (6.000 in pitch diameter), with stock bores from 1/2 in to 3/4 in and weights from 0.14 lb to 7.02 lb. Part numbers follow the Martin S12 series, so the gears drop into drives that were built around S1211 through S1272.
Quality Assurance:
ISO9001: 2015 and GB/T24001-2016 / ISO14001: 2015.
Features
- OEM Spur Gear
- High-precision Spur Gear
- Directly interchangeable with other brands
Imperial 12DP Spur Gear Technical Data
Imperial 12DP Spur Gear Technical Data
How to identify the gear you are replacing
1. Count the teeth. This is the only number you cannot measure approximately.
2. Measure the outside diameter across the tips, in inches.
3. Work out the DP: DP = (teeth + 2) ÷ outside diameter. A result close to 12 confirms a 12 DP gear; 12.7 means a 2 mm module gear.
4. Check the bore, the keyway width and depth, and whether there is one hub or two.
5. Find the pressure angle. If the old gear carries a Martin part number such as S1212, it is 14.5°.
If you only have the old part number or a worn sample, send a photo with a caliper reading across the teeth, and we will match it before you commit.
