JPH0380156U

JPH0380156U -

Info

Publication number: JPH0380156U
Application number: JP14215589U
Authority: JP
Priority date: 1989-12-07
Filing date: 1989-12-07
Publication date: 1991-08-16

Description

[Brief explanation of drawings]

第１図は本考案に係る履帯シール、特にセツト
前の状態を示す断面図、第２図は同セツト状態を
示す断面図、第３図は履帯連結部の部分断面部、
第４図は従来の履帯シールの一例を示す断面図で
ある。１……内方リンク、２……外方リンク、３……
ブツシユ、３ａ……ブツシユ端面、４……軸ピン
、Ｓ，Ｓ′……シール組立体、５……カウンタボ
ア、７，１１……シールリング、８，１２……負
荷リング、７ａ，１１ａ……シールリツプ部、７
ｂ，１１ｂ……フランジ部、９……摺動面。 Fig. 1 is a sectional view showing the crawler track seal according to the present invention, particularly in a state before setting, Fig. 2 is a sectional view showing the same set state, Fig. 3 is a partial sectional view of a crawler linking part,
FIG. 4 is a sectional view showing an example of a conventional crawler belt seal. 1...Inner link, 2...Outer link, 3...
Bush, 3a... Bush end face, 4... Shaft pin, S, S'... Seal assembly, 5... Counter bore, 7, 11... Seal ring, 8, 12... Load ring, 7a, 11a... ...Seal lip part, 7
b, 11b...Flange portion, 9...Sliding surface.

Claims

[Scope of utility model registration request]

A crawler seal fitted into the counterbore of the crawler link is formed by an inner link press-fitted to the end of the bushing and an outer link press-fitted to the end of the shaft pin rotatably inserted into the bushing. A seal lip part extending outward in the direction of the counterbore and forming a sealing surface by contacting the end face of the bushing, a flange part extending outward in the radial direction facing the side wall surface of the counterbore at a distance, and a space between the seal lip part and the flange part. an elastic seal ring having a generally concave cross section and an intermediate cylindrical portion integrally formed and connected; A crawler track seal comprising an elastic load ring having a substantially parallelogram cross section in a free state that is fitted and held at its inner periphery.