I. Tui chhunga thrust ball bearings te hi a bulpui ber a ni.
1. Thil pawimawh (Material Issues): 1.1.
Ordinary thrust ball bearings hi a tam zawk chu carbon steel (GCR15 ang chi) a siam a ni a, chu chu tuiah a inhnim duh hle. Experimental data atanga a lan dan chuan, venhim loh carbon steel bearings te hian an surface area 60% thleng chu tui thianghlim ah ni 30 chhung an inhnim hnuah an rust thei a (mechanical engineering materials 2021 study en la). Waterproofing a ngai a nih chuan stainless steel (440C ang chi) emaw ceramic emaw hmang zawk tur a ni.
2. Lubrication a chhiat dan: 1.1.
Traditional grease lubrication chu tui a awm chuan silfai emaw, emulsified emaw a ni ang. Entirnan, lithium-based grease nena lubricated bearing pakhat friction coefficient chu tuiah a inhnim hnu darkar 24 chhungin 300% in a pung a (data source: SKF Technical Manual). Tui hnuaia hman tur chuan waterproof grease (polyurea-based grease ang chi) thlan a ngai a, chuti lo chuan solid lubricant chu switch a ngai a ni.
3. Sealing tlakchhamna: 1.1.
Standard thrust bearings hian seal a nei lo a, chu chuan tui chu Raceways-ah direct-in a rawn luh tir thei a ni. Test-naah chuan darkar 10 chhung flow rate 1 m/s-a tuiah an thawh hnuah, internal water ingress rate of open bearings chu 90% aia tam a ni.
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II a ni. Tui hnuaia hman dan tur ruahmanna siam theih .
1. Specialized waterproof bearings:
- Material Upgrade: Entirnan, Japan-a NSK "Aqua series" chuan SUS304 stainless steel a hmang a, darkar 500 chhunga salt spray test hnuah rust a awm lo.
- Sealing Improvement: Double-lip rubber seals (NBR atanga siam) hian moisture 99% a block thei (ISO 281 angin finfiah a ni).
2. Hriselna atana hman tur venna atana hman tur: 1.1.
- External sealing cover: IP68-rated housing dah hian cost 20% vel a tipung a, mahse a dam chhung chu a let thum zetin a tipung thung.
- Regular maintenance: darkar 500 danah grease thlak tur a ni (Klüber-a Aquatro 2 series hi a tha hle).
iii a ni. A hmanna tur atana hman dan tur rawtna .
- for short-Term underwater operations: bearing pangngai, temporary waterproof coating nei (WD-40 spray ang chi) nei te chuan darkar 48 aia rei lo an tuar thei.
Long-Term Underwater hmanna atan: Submersible Motors atana siam bik bearings (Thk’s DSA series ang chi) a pawimawh hle. Hengte hi $80-$150 vel a ni a, mahse darkar 50,000 chhung design life a pe thung.
Thutlukna: Thrust ball bearing hi tui hnuaia hman theih a nih leh nih loh chu an venhimna℃leh an hnathawh danah a innghat a ni. User te chuan cost leh performance an balance tur a ni a, pre-sealed, waterproof model te chu an dah pawimawh ber tur a ni.
