Abstract: The present invention provides an improved electric drum brake (10). The electric drum brake (10) utilizes vibration absorbing mount (27) for positioning an electro-magnet (24) on the tang (22) of an actuating lever (21). The vibration absorbing mount (27) prevents metal-to-metal contact between the tang (22) and the electromagnet (24) and eliminates or greatly reduces road vibrations.

Abstract: The present invention provides an improved system (30) for maintaining the position of a castellated nut (34) on a spindle (31) having an axial bore (33) therethrough. The improved system (30) utilizes chordal bore (36) passing through the spindle (31). After the castellated nut (34) is positioned on the spindle (31) a cotter pin (37) is placed within chordal bore (36). The cotter pin (37) is of sufficient length such that both ends (38, 39) thereof extend from the drilled spindle and engage the slots (35) of the castellated nut (34). Thus, the cotter pin (37) prevents rotation of castellated nut (34) maintaining the proper position thereof.

Abstract: A hub-axle assembly (10) and lubrication system thereof includes a spindle (11) having an inner end (12) and outer end (15) with inner (13) and outer (14) bearing assemblies spaced axially on the spindle (11). A hub body (16) is rotatably supported on the bearing assemblies (13, 14) and has a wheel mounting flange (17) extending radially outward therefrom. Lug bolts (18) extend axially outward from the flange (17) with one such lug bolt (18) having an axial bore (24) therein. Grease applied at a grease fitting (23) in the axial bore (24) is transmitted to a lubrication chamber (19) within the hub body (16) via tubing (25) to lubricate the lubrication chamber (19). A circumferential recess (27) in the hub body (16) has at least one aperture (28) therein which is normally closed by an O-ring (29) positioned in the recess (27).