Typical Clients:
FAW, Dongfeng , Yutong, Jinlong
Production Description:
Product Name: DTFLOCK Gages
Typical Clients: FAW, Dongfeng , Yutong, Jinlong
Designed Capacity : 200,000 pcs/year
Available Capacity : 80%
|
Name of thread gauge
|
Appearance
|
Operation rules
|
|
Thread GO gauge
|
Thread crest is sharp
|
a. It can be screwed through internal thread of the work piece. *
b. If the gauge can pass through the internal thread with some resistance, it can be judged as conforming.
|
|
Thread ramp NO-GO gauge
|
Thread crest is sharp
|
The gauge can be screwed into internal thread of the work piece, but the engaged length shall not exceed three pitches.
|
|
Thread P. D. NO-GO gauge
|
Thread crest is flat
|
a. It can not be screwed through internal thread of the work piece.
b. If the NO-GO gauge can pass through the internal thread with some resistance, it can be judged as conforming, provided that the resistance occurs before the third thread tooth.
|
This product was based on US patent 4,171,012, 4074950 and US Military standard Mil-N-85353.
Initially, this technology was used in rocket engine for Space Shuttle in early 80’s. Gradually, it is used widely in auto and many other mechanic industries in US, then around the world.
It is now well accepted in China mechanic industry. Up to today, SDPF is the only Chinese company which can make this product fully met US Standard.