Part Name: Ball Bearing 1s3743
Part Number: 1s3743
Basic Info.
| Parts no. | 1s3743 | Material | steel |
| Type | Ball Bearing | Parts Type | Engineering machinery parts |
| Compatibility | Caterpillar | Transport Package | Wooden box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Date First Listed：2025/12/22
- Manufacturer：Diron Parts
Product Description
- Part Type: Ball Bearing
- Description: Replacement Parts Ball Bearing 1s3743 for Caterpillar, New
The 1S-3743 is a high-precision aftermarket deep-groove ball bearing designed for medium-speed, moderate-load applications in Caterpillar® torque converters, transmissions, and accessory drives. Manufactured from vacuum-degassed chrome steel with super-finished raceways, this bearing delivers smooth, quiet operation and extended service life in classic on-highway, construction, and industrial equipment.
Key Features & Benefits
- Premium 100Cr6 / 52100 bearing steel – vacuum-degassed for superior fatigue resistance
- C3 internal clearance with reinforced stamped-steel cage for thermal expansion and stability
- Honed raceways and Grade 10 balls for reduced noise and vibration
- High-temperature synthetic grease packed and double rubber sealed (2RS) for contamination protection
- 100 % dynamically noise-tested and dimensionally verified
- Excellent balance of load capacity and speed capability
Common Applications (Caterpillar® Compatibility)
- Torque converters and transmissions in: – Wheel Loaders: 950, 966C, 966D, 980B, 980C – Track-Type Tractors: D6D, D7G, D8K – Off-Highway Trucks: 769C, 773B
- Typical locations: – Input/output shaft support – Planetary carrier bearings – Accessory drive and pump bearings
Technical Specifications
- Part Number Reference: 1S-3743
- Type: Deep-groove ball bearing, double sealed (2RS)
- Bore Diameter (ID): 45 mm
- Outside Diameter (OD): 100 mm
- Width: 25 mm
- Dynamic Load Rating: ≈ 53 kN
- Static Load Rating: ≈ 32 kN
- Limiting Speed: 9000 RPM (greased)
- Weight: ≈ 0.85 kg
Important Note:
- We only provide replacement products intended for aftermarket use in the Caterpillar machinery listed above. The brand name Caterpillar is used solely as reference information to indicate compatibility and does not imply that our products are OEM.
- Note: While this description provides general information, specific details such as size, weight and exact material may vary by manufacturer and specific application. To obtain the most accurate and up-to-date information, it is recommended to consult a qualified parts supplier such as DIRON PARTS.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: FOB
Q4. How about your delivery time?
A: Generally, it will take 20 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8. How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from
ABOUT DIRON
- Factory OF DIRON
Diron Parts Group Have Its Own Factory Ensure That We Offer Better Price For Customers. Besides, Diron Corporate With Some Reliable Principal Manufacturers, So Diron Also Supply Customer Other Quality Spare Parts.
- Team OF DIRON
With 18 years of manufacturing and exporting experience, Diron has a team of knowledgeable engineers, inspectors and technical workers, sales staff, after-sales personnel.
- Products OF DIRON
As a distributor, we supply parts covers for :Complete engines, Long block, Short block, Engine spare parts, Electricla products, Hydraulic products, Transmission products, Undercarridge products.Among them, Cylinder head, Cylinder block, Spacer-plate, Bushing & Pin are our best-selling products.
