50Mn/40SiMnTi Single/Double Flag Track Roller Bottom Roller for Excavator and Bulldozer

Our track roller/bottom roller have Precise design, carefully manufactured for proper fix easy grousering heavy loaded capacity up to 50tons without compromising proper functioning of the excavators reliable quality, high cost performance,quality services.Our products,your best choice.

Track roller Information

Material 50Mn/40SiMnTi
Finish Smooth
Colors Black or yellow
Technique Forging casting
Surface Hardness HRC50-56,deepth:4mm-10mm
Warranty time 2000 hour
Certification ISO9001-9002
MOQ 2 piece
Delivery Time Within 30 days after contract established


1. Track roller Material:
Description Material
Body 40Mn2
Side Cover QT450-10
Shaft 45#
Floating Seal 15CrNiMo3
O-Ring rubber
Double Metal Set CuPb10Sn10
Inside Hex Bolt JB/T1000-1977
Lubricated oil SAE85
2. Track roller Heat Treatment and Hardness
description hardness
body HRC53° — 58° H=4.5
shaft HRC51° — 56° H=2.5

Track roller Design / Structure / Details Pics

50Mn/40SiMnTi Single/Double Flag Track Roller Bottom Roller for Excavator and Bulldozer

Track roller Partial list

Thousands type of track roller , We can make products according to Customer’s requirement . Some specification as follow .Our factory have got the full range certification,such like

KOMATSU PC05/PC07 PC12R/PC15R PC10-7 PC20/30 PC20/30(Rubber Tracks)
PC50MR-2 PC56 PC75-3 PC75UU/PC78 PC60-6(Rubber Tracks)
PC60-6 PC60-7 PC60-5 PC200-7 PC220/240-7(Large)
PC300-8 PC400-3/5 PC400-6 PC400-7 PC650-5
PC20R-8 PC30MR-1 PC40/45 PC40MR
PC100-/3/5 PC120-3 PC200-5 PC200-3
PC300-3 PC300-5 PC300-6 PC300-7
HITACHI EX08 EX12/15 EX30-1 EX30-2 EX55/ZX55/ZAX60
EX60-2/3 EX300-5/EX350 EX70/75 EX90-1 ZAX330-3(electronic injection)
EX220-/1 EX270-1/EX300-1 EX400-1 EX400-3/5 EX100M-1/EX150-1
EX40-1 EX40-2 EX50 EX60-1
EX100-2/5 EX200-1 EX200-2 EX200-5
EX100-1 EX60-5 VOLVO360
HYUNDAI R55-7 R60-5 R60-7 R130 R250/R290/R320
R225-7 R290LC-7 R360LC-7 R450
CATERPILLAR E303 E120B/E110/E120 E312 E55/E305.5 E70B/(Bilateral)
E240 E300B E300 E322 E325
E200B/E320 E200B E323 E324
E330 E450
KOBELCO SK020SR SK024/SK025 SK035SR SK045SR SK330-6.8
SK100/120 SK060/SK75 SK120-W SK07-1 SK400-3/SK450/SK460
SK200-/3/5 SK045(10tons) SK200-6 SK200-8 ZAX330-3(electronic injection)
SK030 SK042-1 SK042-2 SK045
SK07-2 SK07N2 SK300 SK300-5
SK220-3 SK220-5 SK310 SK320
SUMITOMO SH30 SH55/SH65 SH60 SH100/SH120 SH120-A3
SH300-2 SH300-3 SH300-1 SH350 SH280
SH340 LS3400FJ2 LS5800FJ2 LS3400FJ2
SH200 SH200 SH220 SH300-1
SH430 SH580 LS2600FJ2 LS2800FJ2
DAEWOO DH55 DH60 DH80 DH150 DH180/200/220
DH450 DH360/370/400/420
DH280-3 DH258 DH300
KATO HD140 HD250 HD308 HD400-1 HD400-2
HD820 HD1250 HD1250-7 HD1430 HD1880
HD770 HD450 HD550 HD700/770
YUCHAI YC18 YC35 YC60 YC85 YC135
KUBOTA U15-3 U30-2 U40-2 U50 U85
YANMAR VIO30-2 VIO40-2/B50 VIO50/55 K030 H45
MITSUBISHI MS110-5 MS110-5 MS230
VOLVO EC55 EC210 EC290 EC360 EC460
Longgong60 SWE50 SWE70
SY55 SY215(375) SY215(370) 柳工922
FIAT FH150 FH200-3 FH220-3 FH300 FH330
Crawler Crane HD408 SD08 2100 601 LS120 LS108
LS108 SMTL 7055 GLT240 IHI400
KH125 KH125310 KH180-1 KH180-3
KH150 ED4000 GLT118 EDSC6
IHI200 IHI500 KH100D KH100-3
KOMATSU/CAT/Bulldozers Series
BD2G D20 D31-15/16 D31-17/18/20 D31-15/16 D31-17/18/20
D80-12 D85-18 D155-1 D155-5 D275A-5 D355
D6H D3C D4 D4D D5 D6D
D41A-6 D50 D60
D4D D5 D6D D6H
D6H D7 D7G


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50Mn/40SiMnTi Single/Double Flag Track Roller Bottom Roller for Excavator and Bulldozer

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50Mn/40SiMnTi Single/Double Flag Track Roller Bottom Roller for Excavator and Bulldozer

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