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Common problems and countermeasures in the application of NTN bearings

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Strong metal tone 1, abnormal load: select appropriate equipment clearance and pre-tightening force 2. Poor assembly: improved machining accuracy of the shaft; improved equipment method 3. Lack of lubricant: make up or apply suitable lubricant gauge sound 1, foreign matter causes Corrugated rust, indentation, scars: removal of related parts; use of clean grease 2, channel shedding: fatigue wear; replacement of NTN bearing irregularities, foreign matter intrusion: removal of related parts; use of clean grease 2, clearance Too big: focus on cooperation and select suitable clearance 3, steel ball scars: steel ball fatigue or foreign body jam; replacement NTN bearing abnormal temperature rise 1, excessive lubricant: reduce lubricant 2, lack of lubricant; or not suitable : Adding lubricant or selecting suitable lubricant 3, cooperating surface creep or sealing equipment is too large: NTN bearing outer diameter or inner diameter cooperation surface correction; sealing method to change shaft reversal oscillation large 1, shedding: fatigue shedding; replacement NTN Bearing 2, poor assembly: improved machining accuracy of the shaft; improved equipment method 3, foreign matter intrusion: removal of related parts; use of clean grease lubricant to leak large discoloration 1, excessive lubricant 2 cut lubricants, foreign body invasion: Clear Part associated anti friction type NTN Bearing:
Anti-friction NTN bearings are divided into two main types. They are ball bearings and roller bearings. Let us know each other; because the specific uses of the manufacturer and NTN bearings are different; according to these fundamental structures and evolved many different Variety.

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Stainless Steel Sliding Door

Characteristics and Advantages

(1) Intelligent control design: adjustable main parameter and secondary parameter automatically according to the weight of door leaves;

(2) Low noise: Special static sound track, integration of motor, worm-gear and retarder.

(3) Anti-clamping function: automatically reverse when meeting barriers;

(4) Unique electronic motor lock: the motor will lock up when the door is forced to open.(controlled by remote or switch)

(5) Tighten force: seal door when closed, power consumption approximately 10W under standby;

(6) Advanced brushless motor(36V,100W) can automatically adopt different heavy door leaves;

(7) Bi-doors inter-locking: one of the door leaves always remains closing;

(8)Safety sensor terminal: sensor stops working when door closed;

(9)Unique coating technology: never rusty;

(10)Easy and convenient to install;

(11)Working Process: when the door leaf closes to the right place, the door leaf will slightly shift to the door frame and the ground. The rubbers on the four sides of the door leaf will completely combine with door frame and ground, which ensures air tightness. When the door is open, the rubbers will separate from door frame and ground, which avoids contraction on the ground.

Technical Specification

Specification	Light Duty		Heavy Duty
Rang of the Door	Single-Leaf	Double-Leaf	Single-Leaf	Double-Leaf
Door leaf max weight	100kg	100kg x 2	200kg	200kg x 2
Mounting Method	Surface mounting or built-in mounting
Open Width	700-2000mm	650-2000mm	750-2000mm	650-2000mm
Power Supply	AC 220v ± 10%, 50-60 Hz
Opening Speed	300-500mm/s (adjustable)
Closing Speed	250-550mm/s (adjustable)
Creep speed	30-100mm/s (adjustable)
Hold-open time	0.5-20s (adjustable)
Airproof Force (Max.)	>70N
Manual Pushing Force	<100N
Electronic Lock Force	>800N
Power consumption	150W
Ambient temperature	-20+50 C

Technical Details:

(1) Rubber lining sealing technology combined with V groove on the guide rail enables the door completely sealed when the door closed;

(2)Special door body location technology. Semicircular surface beam on the ground matches with the V style groove at the bottom of door leaf, which stop the door from swing and make sure it moves stable and smooth;

(3) The door body decorated with matte stainless steel or spray surface, and on the middle and both sides with sealing stripes to ensure the hermetic effect.

(4)Feet sensor switch applied to avoid contagion;

Stainless Steel Sliding Door,Stainless Steel Bypass Sliding Door,Stainless Steel Interior Sliding Door,Stainless Steel Folding Sliding Door

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.highspeedshutterdoor.com