Synchronizer Rings

For high-performance transmissions, we recommend our
synchronizer rings made of steel. In contrast to conventional
brass synchronizer rings, these are produced by
means of sheet-metal forming.
Depending on customer requirements, the steel synchronizer
rings undergo different heat treatment processes
and may also be provided with ground friction surfaces
upon request.
With a comprehensive selection of friction layers,
Diehl Metall is able to provide efficient synchronizer
rings for all application areas.
From the production of prematerial to the delivery of the
finished product, Diehl Metall is able to cover the entire
production process for brass synchronizer rings:
Foundry > Semi-Finished Products > Forging >
Machining > Die Shop > Laboratory / R&D >
Test Benches
Through this integrated value-added chain, we offer
brief product development times from inquiry to timely
delivery. Another advantage is that we supply directly
from our own se
Synchronizer rings made of steel were taken up into the
product portfolio in 2006.
Both progressive and transfer tools are used on our
stamping and forming machines with a pressing force of
up to 8,000 kN. Depending on the application, various
process steps are carried out in these tools, such as
stamping, coining, bending and joining operations.
In contrast to hot-forged brass synchronizer rings,
the cold-formed steel synchronizer rings have natural
limitations. Primarily these are the material to be shaped
and the resultant forming strain.
Diehl Metall DIN EN Symbol
State
Mechanical Properties
DIN EN [Material Number] Rp0.2 [MPa] Rm [MPa] Vickers Hardness
16MnCr5 1.7131 nitriert > 380 > 460 > 600 HV0.5
C35E 1.1181 nitriert > 420 > 500 > 300 HV0.5
C75S 1.1248 vergütet < 1200 < 1500 > 500 HV10
HC260LA 1.0480 nitriert > 340 > 440 > 300 HV0.5
All tools for forging, cutting and non-cutting operations
as well as gauges and fixtures are developed and
designed by us before being manufactured at the
in-house Die Shop.
The latest CAD/CAM systems and state-of-the-art manufacturing
methods such as EDM and 5-axis HSC milling
not only guarantee high-precision but also cost-effective
tool manufacturing as well.
The Development and Design departments as well as
the Die Shop provide the foundation for these complex
tool technologies. Combined with computer-aided
systems for forming simulations (FEM), we determine
material flows, tool loads and the characteristics of
individual process steps.
Diehl Advantages and Attributes
> In-house Design & Die Shop
> Production of forging, stamping
& sheet-metal forming tools
> Sample & prototype production
> Production of measuring equipment & fixtures
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Diehl Metall
DIN EN
Brinell hardness
HBW 2.5/62.5
min.
Tensile strength1)
Rm (MPa)
min.
Yield strength1)
Rp0.2 (MPa)
min.
Elongation1)
A5 (%)
min.
Mechanical Properties
DIN EN Symbol State Material behavior
3562)
CuZn36Mn3Al2Si1
170-220
630 330 13
Very high strength,
- HBW2.5/62.5 good sliding abrasion properties
452
CuZn37Mn3Al2PbSi H130
130 580 270 20 Good wear properties,
CW713R HBW2.5/62.5 550 200 8 excellent oil corrosion resistance
4552)
CuTn36Mn2Al1FePbSiSn
160
580 270 20
High strength, good toughness,
- HBW2.5/62.5 good oil corrosion resistance
458
CuZn37Mn3Al2PbSi
H130
130 580 270 20 High strength,
CW713R HBW2.5/62.5 550 200 8 good sliding abrasion properties
466
CuZn23Al6Mn4Fe3Pb
200 780 540 8
CW704R HBW2.5/62.5 700 500 5 Very high strength
4672)
CuZn23Al6Mn4Fe3
200
780 540 8
- HBW2.5/62.5 Very high strength
4702)
CuZn13Mn8Al5Si2Fe1Pb
180
630 430 12
- HBW2.5/62.5 Very high strength
4742)
CuZn13Mn8Al5Si2Fe1
180
630 430 12
- HBW2.5/62.5 Lead-free
4792)
CuZn30Mn3Al3Si1NiCr
195-225
650 400 15
- HBW2.5/62.5 High hardness, high wear resistance
4822)
CuZn29Al4Ni3Co1SiFePb
190
790 710 5
- HBW2.5/62.5 High hardness, high wear resistance
4882)
CuZn32Ni7Al4Si2Fe
240-300
830 720 3
- HV50 Highly wear resistant, high strength
4892)
CuZn18Mn8Al5Si2Fe1Pb
220-300
840 800 5
- HV50 Highly wear resistant, high strength
4902)
CuZn35Ni14Si4Pb
170
560 400 4
- HV50 Maximum wear resistance
4922)
CuZn18Mn8Al5Si2Fe1
220-300
840 800 5
Highly wear resistant,
- HV50 high strength, lead-free
We offer all stages of testing, including material, component
and service life tests as well as the concluding
functional test in the transmission. To do this, we use
twelve test benches:
• Material wear test bench
• Diehl obstructing tooth wear test bench
• Diehl component test benches
for friction value and wear
• ZF/FZG standard synchronization test bench SSP180
• Transmission test benches
Diehl Advantages and Attributes
> Testing in all development phases
- from prototype to series production
> Understanding operating conditions in practice
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FAQ:
Question: What is the price ?
Answer: Our prices are determined by various factors, including: Brand, Model, Power, Quantity, Price Term (FOB, CIF, CPT, FCA, etc), Certificates, etc.
Question: What is the MOQ ?
Answer: for complete engine, 1 set; for engine parts, 1 engine set; 
Question: Are samples available ?
Answer: Sample order is acceptable, but with higher unit price. 
       For regular partners, if necessary, free samples are available.
Question: How long is the production cycle (lead time) ?
Answer: for engine parts, we usually have enough stock; for engines, usually around 10-20 days; for stock engine, usually 1 week.
Question: How long is the shipment?
Answer: if by Express, usually 3-4 working days; if by air, usually 3-5 working days; if by sea, 3-7 days to Southeast Asia, 15-20 days to Middle East, South Asia and Australia, 20-25 days to Europe, USA and Africa, 30-35 days to Latin America and other regions.
Question: What are your payment methods ?
Answer: we accept T/T (bank wire transfer), L/C, Western Union, Money Gram, Secured Trade through Made-in-China, etc.
 
More questions about our products , please contact us or visit our company website at :chinahuchuan.en.made-in-china.com