Introduction to generator tensioner for BMW：
Automobile generator tensioner for BMW is a key component in engine accessories. Tensioner pulley for BMW is responsible for automatically adjusting the tightness of the drive belt through the internal spring or hydraulic system to maintain appropriate tension under different operating conditions. Tensioner pulley for BMW is mainly used to adjust the tightness of the engine drive belt. Tensioner wheel is usually connected to a series of accessories that require belts to drive, such as water pumps, generators, and air-conditioning compressors.
Why does the mechanical engine tensioner wheel have abnormal noise?
The main sources of noise are bearings and internal damping mechanisms (springs, damping blocks, etc.). If damage is found when inspecting the BMW belt tensioner wheel, tensioner pulley for BMW needs to be replaced in time. Common damage conditions include：
If the engine tensioner wheel is damaged during inspection, the engine tensioner wheel needs to be replaced. What kind of damage will generally occur?
1. Fracture analysis of the bottom plate: Tensioner pulley for BMW is very likely that it is due to incorrect installation and adjustment, excessive adjustment, or tensioner pulley for BMW may be caused by contact with other parts.
2. Analysis of cracking of aluminum parts: Engine tensioner wheel may be that the installation and adjustment are incorrect, and the timing pointer is not aligned with the position, causing the left and right impact.
3. Pulley fracture analysis: Incorrect installation of the engine tensioner wheel causes the generator tensioner for BMW to tilt or the running surface of the belt and the tensioner is not parallel.
4. Pulley deformation analysis: Incorrect installation of the belt tensioner wheel causes the belt tensioner wheel to tilt or other parts of the engine are not parallel to the engine installation plane.
5. Deformation of the adjustment plate analysis: Incorrect installation and adjustment, contact with other parts.
6. Spring break analysis: The installation error of the belt tensioner wheel caused the spring to be overloaded for a long time, the spring interfered with the internal parts of the belt tensioner wheel, and fatigue broke.
Technical parameter table of belt tensioner wheel for BMW：
| Parameter category | Parameter details |
| Product model | ST-BMW-TS01 (tensioner) /ST-BMW-GS01 (generator tensioner) |
| Suitable models | All BMW series (2010-2025 models 3 series/5 series/X3/X5, etc., need to be used in conjunction) |
| Original OE standard | BMW 11 31 7 866 543 (compatible with original installation position) |
| Body material | Forged aluminum alloy shell + Japanese NTN/NSK bearing (model: 6203-2RS) |
| Operating temperature range | -40℃~ +220℃ (high temperature coating treatment |
| Torque pressure value | Static: ≥180 N·m /dynamic: ≥120 N·m |
| Service life | 80,000 kilometers or 5 years (first arrival shall prevail) |
| Dimensional tolerance | Axial clearance ≤0.05mm / radial runout≤0.03mm |
| Warranty service | 24 months/60,000 kilometers (nationwide warranty with electronic warranty card) |
| Supporting suggestions | Need to be replaced simultaneously: •Gates 6PK2280 belt (engine) •Horse brand 6PK2310 belt (generator) |
Our strengths：
1. Our engine tensioner wheel and belt tensioner wheel use high-quality bearings from well-known Japanese brands NTN and NSK to ensure that the belt tensioner wheel suitable for BMW has excellent wear resistance and reliability in engine operation, effectively extending service life and reducing the risk of failure.
2. The use of high-strength alloy steel or composite structure design, can withstand the extreme conditions of engine high temperature (such as above 200°C) and high-frequency resonance, can avoid deformation or fracture, and improve overall safety and performance stability.
3. The original OE (Original Equipment) size design is designed in strict accordance with the standards of original BMW parts, and the tolerance gap is strictly controlled within 5 wire (0.05mm) to achieve seamless compatibility with original BMW parts, easy installation and worry-free maintenance.
Replacement of belt tensioner wheel failure：
If the belt tensioner pulley for BMW fails due to irregular opening of the aluminum alloy shell, metal pollution, or oxidation lock, there is generally no need to worry about the specific cause. Because the generator tensioner for BMW is an assembly part, whether it is a broken spring or a broken bearing, the entire tensioner pulley for BMW assembly is generally replaced.
Generally speaking, the service life of the generator tensioner for BMW is about 80,000 to 100,000 kilometers, and the owner can choose to replace it according to the actual use of the car. Because the generator tensioner for BMW and the belt are used simultaneously in the transmission system, in order to reduce repeated disassembly and replacement and potential risks in the later stage, it is recommended that the majority of car owners and friends replace the belt and the Generator tensioner For BMW together during maintenance.
About us：
Sortech company was established in 2008, is a high-tech enterprise focusing on the research and development and manufacturing of auto parts. We have been deeply engaged in the field of accessories for high-end models such as BMW for many years, and are committed to providing high-quality tensioner pulley for BMW products. Through a strict ISO/TS 16949 quality management system and advanced production technology, we can ensure that each product has undergone precision testing and meets the original OE standards. Choose us to be your good partner!
A: Our products have passed ISO/TS 16949 quality management system certification, and meet the European CE, Russian GOST and other regional standards. Specific certification can be provided according to customer needs.
A: Yes! Please provide your requirements or refer to our product catalogue on the website. We will send you detailed technical documents (including size, material, vehicle type, etc.).
A: The regular model is available in stock, and the delivery cycle is 3-5 working days; the production cycle of customized products needs to be confirmed according to the order.
A: Please provide the brand, model and year of the vehicle (such as BMW 2020), we will match the corresponding accessories.
A: We provide OEM number comparison service or verify compatibility through third-party tools.
A: The default quotation is the factory price (excluding tax). If you need FOB price, you need to specify the freight forwarder and bear the international freight, we will cooperate with you.
A: The larger the order volume, the higher the discount. For example: -MOQ 100 pieces: unit price $10. -MOQ 500 pieces: unit price $8. Specific step prices can be negotiated after the procurement plan is provided.
A: The quotation is not included in tax (tax number of customer is required for export tax exemption in China). If DDP (tax paid delivery) is required, additional tax confirmation is required.
A: You can send the purchase list by email or submit the order online (official website link), we will confirm within 24 hours.
A: The modification can be made free of charge before production; the cancellation during production will incur the material loss fee (30% of the order amount); the cancellation after delivery is not allowed.
A: The freight shall be borne by your company under FOB price; the cost to the destination port/denominated place shall be borne by us under CIF/DAP price.
A: To be provided: -Commercial invoice (including HS code). -Packing list. -Certificate of origin (FORM A). -Technical documents (e.g. product certification certificates). We can assist in preparing the documents, but the customer is responsible for customs clearance.
A: It can be agreed to take the spot selling price of the Bank of China at the time of signing the contract as the benchmark, or avoid the risk of volatility through forward exchange contracts.
A: 2 years and 60,000 kilometers, electronic components 1 year warranty.
A: Please provide photos, test report and batch number to confirm the quality problem: -Free replacement or repair within the warranty period (24 months); -Negotiate partial compensation for non-quality issues.
A: The return freight shall be borne (except for quality problems), and the return shall be confirmed by our quality inspection.
A: Provide multi-language installation video and graphic manual, complex accessories can arrange engineers for remote guidance.
