Forged Rings for Slewing Rings

We can also provide Forged Rings for Slewing Rings . We can supply the material of C45 steel, 50Mn, 42CrMo material. Normally we deliver the forged rings after rough machining and quenching, and the tolerance can be discussed case by case.

Chemical Analysis

Steel

    C

     Si

    Mn

    P

   S

Cr

Mo

   Ni

   Cu

50Mn

0.48~0.56

0.17~0.37

0.70~1.00

≤0.035

≤0.035

≤0.25

—

≤0.30

≤0.20

42CrMo

0.38~0.45

0.17~0.37

0.50~0.80

≤0.035

≤0.035

0.90~1.20

0.15~0.25

—

—

45

0.42~0.50

0.17~0.37

0.50~0.80

≤0.035

≤0.035

≤0.25

   —

≤0.30

≤0.20

* or other materials as required by customers

Mechanical Properties

Steel Grade

Tensile Strength σb

Yield Point σs

Elongation δ5

Shrinkage ψ

Impact Aku2

GB/T 699-1999

≥645MPa

≥390MPa

≥13%

≥40%

≥31J

50Mn

GB/T 699-1999

≥1080MPa

≥930MPa

≥12%

≥45%

≥63J

42CrMo

GB/T 699-1999

≥600MPa

≥355MPa

≥16%

≥40%

≥39J

45

Contrast of Steel Grade

Chinese Standard

DIN Standard

AISI Standard

ISO Standard

GB/T 699-1999

—

AISI1053

SL，SM

50Mn

GB/T 699-1999

42CrMo4

4140

42CrMo4

42CrMo

GB/T 699-1999

C45E

AISI1045

C45E4

45

Heat treatment: Quenching & Tempering, Normalizing
Hardness of forged rings

Steel Grade

Quenching&Tempering

   Normalizing

         Hardness

    Hardness

GB/T 699-1999

HB229~269

HB179~235

50Mn

GB/T 699-1999

HB269~321

*

42CrMo

GB/T 699-1999

HB228~280

HB170~217

45

* As required by customers

We determine the hardness according to the diameter of depression in the forged rings.

GGB 是最早的发达的 LMG，是最广泛使用的指南之一。设计与等于 45 ° 接触角，使相等的负载在四个方向 — — 垂直上行、下行垂直、水平左，右，和与额定负载过重时，刚性好、高刚度和强大的扭矩耐，它还要求四个方向等于负载 LM 指南。...

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直线运动导轨包括铁路、块、球、再循环、球保持架，GSB 系列密封垫片和油杯或石油管等。

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Steel	C	Si	Mn	P	S	Cr	Mo	Ni	Cu
50Mn	0.48~0.56	0.17~0.37	0.70~1.00	≤0.035	≤0.035	≤0.25	—	≤0.30	≤0.20
42CrMo	0.38~0.45	0.17~0.37	0.50~0.80	≤0.035	≤0.035	0.90~1.20	0.15~0.25	—	—
45	0.42~0.50	0.17~0.37	0.50~0.80	≤0.035	≤0.035	≤0.25	—	≤0.30	≤0.20
* or other materials as required by customers