Product Description
This comprehensive collection of TDS replacement parts encompasses all critical wear components, sealing elements, bearings, fasteners, and auxiliary parts for 121344, 30181397, and 88140 top drive systems. Unlike generic aftermarket parts that compromise on material quality and fit, each component is reverse-engineered from original OEM specifications, using high-grade alloy steels, heat-resistant elastomers, and precision-machined metals to match the performance of factory-installed parts. The catalog covers everything from minor sealing rings and shim rings to major gear assemblies, bearings, and filter elements, eliminating the need for multiple suppliers and streamlining inventory management for drilling operations of all scales.
Functional Specifications
- Power Transmission Support: Gear assemblies, bearings, and shaft bushings are engineered to handle maximum torque loads up to 50,000 ft-lbs and rotational speeds of 0-300 RPM, ensuring smooth power delivery for drilling, tripping, and casing operations.
- Leak-Proof Sealing Performance: All sealing components (o-rings, gaskets, labyrinth seals, shaft seals) feature high-compression elastomer formulations resistant to drilling mud, oil, hydraulic fluid, and temperatures ranging from -40°F to 350°F, eliminating fluid leaks and contamination.
- Filtration & Contamination Control: Filter elements and magnetic separators deliver 99% filtration efficiency for hydraulic and lubrication systems, capturing particulate matter down to 5 microns to protect critical internal components.
- Adjustment & Alignment Capabilities: Precision shim rings (0.002″, 0.003″, 0.005″, 0.010″ thicknesses) enable exact bearing preload and shaft alignment, reducing vibration and extending component lifespan by up to 40% compared to uncalibrated assemblies.
Structural Characteristics
Every part in this catalog is built for rugged rig-site use, with specialized structural design features to withstand heavy shock loads, corrosive drilling environments, and continuous operation: critical rotating components use through-hardened alloy steel for wear resistance; sealing elements employ multi-lip and labyrinth designs to block debris ingress; fasteners feature corrosion-resistant plating and high-tensile strength to prevent loosening under vibration; and modular components allow for quick, in-field replacement without full system disassembly. The standardized part numbering system (OEM cross-referenced) ensures easy identification and inventory tracking, reducing human error during maintenance and replacement.
Applicable Operating Conditions
These TDS replacement parts are engineered to perform in the harshest drilling environments, making them suitable for:
- Onshore land drilling rigs (desert, arctic, and temperate climates)
- Offshore platform and jack-up rigs (saltwater corrosion, high-humidity conditions)
- Directional drilling and horizontal drilling operations
- High-pressure, high-temperature (HPHT) drilling applications
- Planned routine maintenance, emergency repairs, and system overhauls
Maintenance & Service Recommendations
To maximize the service life of TDS components and minimize unplanned downtime, follow these industry-leading maintenance protocols:
- Routine Inspection Schedule: Conduct visual and functional inspections of seals, bearings, and fasteners every 500 drilling hours; replace wear-prone parts (seals, o-rings, filter elements) every 1,000 hours or annually, whichever comes first.
- Lubrication Protocols: Use API-approved high-temperature lubricants for bearings and gear assemblies; ensure proper lubrication levels via the oil level indicator to prevent dry running and friction damage.
- Seal & Gasket Care: Inspect sealing surfaces for scratches or corrosion before installation; torque fasteners to specified OEM values to maintain consistent compression and prevent leaks.
- Filtration System Maintenance: Replace filter elements and clean magnetic separators every 300 hours to prevent contamination buildup; inspect accumulator seal kits quarterly for hydraulic pressure retention.
- Record-Keeping: Document part replacements, torque values, and inspection results to track component lifespan and predict future maintenance needs.
- We spply the following spare parts:
1 Изолирующее уплотнение 121344 9 118456 1
2 Втулка распорная 121344 10 107138 1
3 Втулка распорная 121344 12 91829 1
4 Уплотнение корпуса редуктора 121344 13 88588 1
5 Уплотнение корпуса редуктора 121344 14 75981 1
6 Стопорное кольцо зубчатой шестерни 121344 15 99177 1
7 Лабиринтное уплотнение 121344 16 98931 1
8 Уплотнительное кольцо редуктора 121344 18 91255 1
9 Дистанционное кольцо цилиндрического подшипника главного вала 121344 25 98705 1
10 Регулировочное кольцо 0,002″ 121344 27 91251-1 10
11 Регулировочное кольцо 0,003″ 121344 28 91251-2 4
12 Регулировочное кольцо 0,005″ 121344 29 91251-3 2
13 Регулировочное кольцо 0,010″ 121344 30 91251-4 4
14 Уплотнительное кольцо, 3″ FIG.1002 121344 33 91923 1
15 Вкладыш главного вала 121344 34 98290 2
16 Подшипник цилиндрический роликовый 121344 45 91252 1
17 Подшипник упорный 121344 46 91243 1
18 Подшипник конический роликовый 121344 47 91242 1
19 Гайка шестигранная 121344 65 50512-С 10
20 Шплинт 121344 70 51402-12-S 10
21 Кольцо круглого сечения 121344 81 90133 1
22 Кольцо круглого сечения 121344 82 51300-392-B 1
23 Кольцо круглого сечения 121344 86 51300-349-B 2
24 Кольцо круглого сечения 121344 87 51300-276-B 1
25 Кольцо круглого сечения 121344 88 51300-458-B 1
26 Втулка промежуточного вала нижняя 121344 92 88606 2
27 Шестерня главного вала 121344 93 118130 1
28 Уплотнение (манжета) 121344 94 91250-1 1
29 Уплотнение (манжета) 121344 95 89053-V 2
30 Уплотнение (манжета) 121344 96 98291 2
31 Двойная шестерня зубчатая шестерня низкой передачи в сборе с подшипниками 121344 97 116804-500 1
32 Прокладка крышки механизма переключения 121344 107 88859 1
33 Кольцо круглого сечения 121344 111 51300-142-B 1
34 Втулка промежуточного вала верхняя 121344 117 88605 2
35 Прокладка переключателя 121344 126 88956 2
36 Уплотнительное кольцо 121344 129 88953 1
37 Кольцо круглого сечения 121344 130 51300-234-B 2
38 Указатель уровня масла 121344 138 74004 1
39 Фильтрующий элемент 30181397 88 30175768-1 1
40 Магнитный сепаратор 30181397 n/a 30111013-5 1
41 Магнитный сепаратор 30175768 n/a 30173422-14 1
42 Уплотнение для фильтра 30175768 n/a 30156633-10 1
43 Уплотнение для фильтра 82747 n/a 82747-N92151 1
44 Фильтрующий элемент 82747 n/a 82747-932633Q 1
45 Фильтрующий элемент 82747 n/a 82749 2
46 Уплотнение для фильтра 82747 n/a 85616 2
47 Комплект уплотнений гидроаккумуляторов 94601-3/84601-3 n/a 82674-SK 4
48 Вставка фильтра грубой очистки 30181397 106 30176000-3 1
49 Термостат 30181397 97575 1
50 Нагрузочный вкладыш 30179600 33 114895 1
51 Кольцо круглого сечения 30179600 35 51300-446-B 1
52 Подшипник 11″I.D.x13″O.D. 88140 3 79854 1
53 Подшипник 12″I.D.x14″O.D. 88140 12 88099 1
54 Уплотнение канала 88140 11 88098 8
55 Уплотнительная манжета 88140 10 88096 2
56 Прокладка изолирующего кольца 88140 28 88302 1
57 Защитная крышка сальникового узла 121344 17 118959 1
58 Переходник (фитинг) 121344 19 56710-4-2-S 1
59 Клапан 121344 20 141304 3
60 Форсунка 121344 36 88990-4 3
61 Соединение 121344 37 116770 1
62 Пробка 121344 44 53000-32-С 2
63 Болт (головка шестигранная, со сверлением) 121344 49 50020-24-C5D 3
64 Болт (головка шестигранная, со сверлением) 121344 50 50020-29-C5D 9
65 Болт (головка шестигранная, со сверлением) 121344 51 50016-22-C5D 6
66 Болт (головка шестигранная, со сверлением) 121344 52 50012-20-C5D 14
67 Болт (головка шестигранная, со сверлением) 121344 53 50012-28-C5D 10
68 Прокладка 121344 64 98504 1
69 Шайба стопорная 121344 67 50920-С 10
70 Штифт 121344 73 51216-24 4
71 Штифт 121344 75 51212-18 4
72 Болт (головка шестигранная, со сверлением) 121344 76.77 50006-10-C5D 10
73 Кольцо круглого сечения 121344 83 51300-222-B 1
74 Кольцо круглого сечения 121344 84 51300-227-B 1
75 Шайба стопорная 121344 89 50916-C 18
76 Стопорное кольцо пальца подъемной скобы 121344 90 53500-500 2
77 Шайба плоская 121344 91 50808-N-C-5 7
78 Пробка резьбовая 121344 98 53000-2-S 3
79 Втулка механизма переключения 121344 102 89071 1
80 Втулка механизма переключения 121344 103 89072 1
81 Дистанционное кольцо 121344 105 89069 2
82 Шпонка 121344 108 56904-5 1
83 Шпонка 121344 109 56906-10 1
84 Кольцо стопорное 121344 110 53600-100 1
85 Кольцо круглого сечения 121344 114 51300-232-B 2
86 Втулка механизма переключения 121344 116 88861 1
87 Болт (головка шестигранная) 121344 118 50008-13-C5D 4
88 Привод переключателя передачи (шестигранный адаптер) 121344 119 88947 1
89 Штифт 121344 124 51603-4-S 2
90 Пружина переключателя 121344 127 89196 1
91 Упорный подшипник переключателя передачи 121344 128 89195 2
92 Плунжер 121344 131 88950 2
93 Штифт 121344 132 51604-5-S 2
94 Болт шестигранный 121344 133 50012-16-С5D 3
95 Штифт 121344 134 51208-8 2
96 Втулка механизма переключения 121344 135 89244 1
97 Кольцо круглого сечения 121344 136 51300-240-B 2
98 Пластина, механизм переключения 121344 140 89065 1
99 Дистанционное кольцо индикатора переключения 121344 141 88863 1
100 Втулка штифта, механизм переключения 121344 142 89067 2
101 Втулка шестерни индикатора нижняя 121344 143 88862 1
102 Шестерня привода индикатора 121344 145 88853 1
103 Втулка шестерни индикатора верхняя 121344 146 88861 1
104 Шайба упорная 121344 147 89156 1
105 Соединение 121344 148 56501-4-4-S 4
106 Угловой поворотный фитинг 121344 149 56518-4-4-S 2
107 Угловой фитинг 121344 150 56705-4-4-S 2
108 Тройник 121344 157 52712-B 1
109 Шайба стопорная 121344 167 50912-С 39
110 Шайба стопорная 121344 168 50906-С 32
111 Штифт 121344 171 51206-7 2
112 Болт шестигранный 121344 172 50010-14-С5D 2
113 Шайба стопорная 121344 173 50910-С 2
114 Штифт резьбовой 121344 174 109717 2
115 Фильтрующий элемент 30181397 45 30111013-1 1
116 Гидроаккумулятор 88904 3 84601-3 2
117 Гидроаккумулятор 2″ M614000316-ASM-001 304 82674 2
118 Упорная втулка 30179600 34 93863 1
119 Втулка с заплечником 88140 6 79943 2
120 Изолирующее кольцо 88140 24 88158 1
121 Тавотница 90 88140 50 53203 2
122 Тавотница, прямая 88140 49 53201 3
123 Адаптер 98538 1
124 Sобразная труба NOV/91677-502 1
125 Гусак 92808-3 1
126 Плита NOV/115341 2
Field Failure Repair Case Studies
Case 1: Main Shaft Seal Leakage (121344 Series TDS)
A land drilling rig experienced severe hydraulic fluid leakage from the main shaft seal during a 12,000 ft drilling operation, causing lubrication loss and gearbox overheating. Technicians replaced the worn labyrinth seal (part number 98931) and main shaft bushing (part number 98290), resolving the leak in 2 hours and restoring full operational capacity without further component damage.
Case 2: Bearing Preload Misalignment (88140 Series TDS)
An offshore rig reported excessive vibration and noise from the top drive cylindrical bearing assembly, leading to inconsistent rotation. Maintenance teams installed precision 0.005″ adjustment shims (part number 91251-3) to correct bearing preload, eliminating vibration and extending bearing life by 6 months, avoiding a full bearing replacement.
Case 3: Hydraulic Filter Contamination (30181397 Series TDS)
A directional drilling operation suffered hydraulic system failure due to clogged filter elements, halting drilling progress. Replacing the filter element (part number 30175768-1) and magnetic separator (part number 30111013-5) restored hydraulic flow and pressure, allowing the rig to resume operations within 90 minutes and preventing costly downtime.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with all TDS 121344, 30181397, and 88140 top drive models? | Yes, all parts are precision-engineered to fit OEM specifications for these exact TDS series, with full cross-referencing to original part numbers for guaranteed compatibility. |
| What materials are used for high-wear components like bearings and seals? | Bearings use through-hardened chrome alloy steel for wear resistance, while seals utilize FKM and nitrile elastomers resistant to drilling fluids, oil, and extreme temperatures, meeting API quality standards. |
| Can these parts be used for both routine maintenance and emergency repairs? | Absolutely, this parts list covers both scheduled maintenance items (filters, shims, o-rings) and emergency replacement parts (seals, bearings, gears) to address all TDS repair scenarios efficiently. |
Procurement Guidance & Technical Support
This TDS replacement parts catalog serves as your definitive procurement and technical reference, providing all the specifications, part numbers, and installation guidance needed to source high-quality, reliable components for your top drive system. Whether you are stocking inventory for routine maintenance, planning a system overhaul, or addressing unexpected field failures, these parts deliver consistent performance, strict quality compliance, and long-term value to keep your drilling operations running smoothly.
For custom part kits, bulk ordering options, or technical assistance with part selection and installation, reach out to secure the exact components your TDS system requires. All parts are manufactured to meet global drilling industry standards, ensuring you receive durable, performance-matched replacements that reduce maintenance costs and maximize rig uptime. Invest in these premium TDS parts to protect your equipment investment and maintain uninterrupted drilling productivity.
