- No. 43, Yushan Road, Huqiu District, Suzhou City, Jiangsu Province, China
- +8613671928471
- dafuli01@ebikeserviceparts.com
Premium oil-resistant rubber gear sealing ring for Tongsheng TSDZ2 & TSDZ2B mid drive motors. Blocks water, dust and debris, protects internal gears, ideal B2B spare part for ebike repair shops and distributors.
This gear sealing ring is a dedicated replacement spare part for Tongsheng TSDZ2 and TSDZ2B mid-drive electric bicycle motors. Manufactured from high-grade oil-resistant rubber, it forms a tight seal for the motor gear chamber to stop ingress of water, mud, dust and grit, protecting internal gears and bearings from abrasion and premature failure.
| Item | Parameter |
|---|---|
| Compatible Motor | Tongsheng TSDZ2 / TSDZ2B Mid Drive Motor |
| Material | High-grade oil-resistant rubber |
| Function | Gearbox sealing, waterproof, dustproof, grease retention |
| Feature | Precision molded, direct fit, no modification required |
| Application | TSDZ2 / TSDZ2B motor overhaul, maintenance and repair |
✅ Superior Oil & Weather Resistance: Premium rubber compound maintains flexibility under temperature swings and continuous vibration, resists grease erosion; does not turn brittle or crack easily.
✅ Effective Gearbox Protection: Creates a reliable barrier to block water, dust and debris. Prevents internal contamination, reduces gear wear and avoids costly motor breakdown.
✅ Direct OEM-Style Fit: Precision molded to match original TSDZ2 / TSDZ2B dimensions. Quick installation without frame or motor modification, saves workshop labor time.
✅ Cost-Effective Maintenance Spare: Replaces aged, cracked or leaking original seals. Extends motor service life and avoids full motor replacement. Great for regular service jobs.
✅ B2B Wholesale Ready Spare Part: Compact, easy to stock. Essential inventory for ebike repair centers, conversion workshops and global ebike aftermarket distributors.
TSDZ2 / TSDZ2B mid motors are exposed to mud, rain and road contaminants during riding. A degraded seal allows contaminants into the gear chamber, accelerating gear tooth wear and causing grease leakage. Regular seal replacement is a key routine maintenance step.
Suitable for bulk wholesale for ebike aftermarket suppliers, repair shops and conversion builders across Europe, North America and Australia.
We specialize in mid-drive motors and e-bike parts. Strict testing, powerful R&D and flexible OEM service guarantee long-term cooperation.
It used to take me weeks to hunt down hard‑to‑find e‑bike spare parts. Their compatibility‑check technical support saved me countless repair headaches. Reliable supplier I can always count on.
For more FAQs and further details, please get in touch with us
We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.
We serve mainstream drive system manufacturers: Ananda, Bafang, Aikema, Tongsheng, Shengyi, Bosch and more. We also provide repair components for complete e-bike brands including Sur‑Ron, Aventon, Trek and many others.
All items are brand-new and inspected before shipment. We do not supply second-hand or refurbished goods.
Our team verifies compatibility according to your bike model, motor info or original part photos. We confirm available OEM parts or recommend workable alternative solutions.
Yes. Flexible order sizes are supported, ranging from single spare parts to bulk purchases.
Sea freight, air freight and rail transport are optional.
Lead time varies by item and shipping mode. We confirm exact timelines before each order and share tracking updates.
We provide part identification, model matching and full order follow-up support.
