Needle Roller Bearing Automatic Assembly Line – Pneumatic Components Application Case

    Per needle roller bearing assembly requirements, the process is divided into three stages: bearing housing greasing, needle insertion, and cover assembly. The basic automated line layout is as follows:

    1. Greasing Station: After the bearing housing arrives via conveyor, a clamp cylinder secures it. A greasing nozzle, driven by a cylinder, descends. Upon positioning, an adjustable metering pump injects grease for a set duration, then retracts. The clamp releases, and a pusher cylinder transfers the greased housing to the next station.

    2. Needle Assembly Station: This station has two feed lines:
    A) The greased housing is pushed into position and clamped under the needle press head.
    B) Needles are fed into a vibratory bowl feeder, automatically aligned into a chute. A reciprocating cylinder loads needles into the press head (quantity matches bearing requirement). Once full and the housing is clamped, the press head inserts all needles. Grease holds them in place. The clamp releases, and a pusher moves the assembly to the next station.

    3. Cover Assembly Station: Also dual-feed:
    A) The needle-loaded housing is positioned and clamped.
    B) Covers are fed via vibratory bowl into a chute; a feed cylinder positions one cover. When both parts are confirmed present, the press head installs the cover. A pusher then sends the finished bearing to packaging.

    The entire sequence is PLC-controlled. Each step proceeds only when parts are correctly positioned, oriented, and counted—preventing misassembly or omissions. Any error halts the line.
    Cycle time: ~4 seconds/unit → ~7,000 units per 8-hour shift.

    For more information, contact Wuxi Huatong Pneumatic Manufacturing Co., Ltd.