Motor V-Belt (Lower) - Bernina Part #305.163.03 - Models 707-900
Motor V-Belt (Lower) - Bernina Part #305.163.03 - Models 707-900 is backordered and will ship as soon as it is back in stock.
Free Shipping on USA orders over $45
Free Shipping on USA orders over $45
Fast, reliable shipping for all your sewing machine parts and accessories
Fast Shipping
We pride ourselves on swift order processing and dispatch. Once your order is confirmed, we work diligently to get it ready for shipment, typically within 1–2 business days, with same-day shipping for orders placed before 2:00 PM EST.
Free Shipping
For US orders over $45, we offer free shipping as our way of showing appreciation to our valued customers. This applies after discounts, taxes, and shipping are calculated.
Delivery Time
The actual delivery time depends on your location and the shipping method chosen during checkout:
- Standard Shipping (US): Approximately 2–5 business days within the contiguous United States.
- Priority Shipping (US): 1–3 business days.
- Canada: 7–14 business days, up to 30 days.
- International (e.g., UK, Australia): 7–14 business days, up to 30 days for remote areas.
Delivery may vary due to customs, weather, or carrier delays, especially for APO/FPO addresses.
Tracking Information
As soon as your order ships, we’ll provide you with a tracking number. You can monitor your package’s progress online via our tracking portal or your order details on vintagesingerparts.com, Etsy, or eBay.
Contact Us
If you have any specific inquiries about your order or need further assistance, feel free to reach out to us via email at Contact Us during our business hours (9:00 AM to 5:00 PM Central Time). We’re here to ensure your sewing supplies reach you promptly! 🚚🧵
US Shipping
- Free Shipping: Available on all US orders $45 and up, including APO/FPO addresses. Merchandise total must be over $45 after discounts, taxes, and shipping.
- Flat Rate Shipping: $6.25 on orders under $45
- Priority Shipping: $11.75
- Shipping Service: United States Postal Service (USPS) Ground Advantage, First-Class Mail, and Priority Mail, all with tracking.
- Shipping Timeline: Orders are shipped within 1–2 business days of being placed and generally received within 7–10 business days. APO/FPO addresses may take longer.
Canadian Shipping
- Shipping: Weight-based.
- Shipping Service: USPS and UPS Ground Services.
- Shipping Timeline: Orders are shipped within 1–2 business days and generally received within 14 business days but may take up to 30 days.
- Custom Fees: May apply and are the buyer’s responsibility.
International Shipping (Rest of the World)
- Shipping: Weight-based.
- Shipping Service: United States Postal Service (USPS) First-Class Mail International and Priority Mail International.
- Shipping Timeline: Orders are shipped within 1–2 business days and generally received within 14 business days but may take up to 30 days.
- Custom Fees: May apply and are the buyer’s responsibility.
Facts
Unlike many Internet retailers, we stock nearly everything we sell. Most of our products are in stock and ready to ship when you place your order. Every year, we process several thousand orders. We take great care to ensure your package arrives on time, complete, and in good condition.
Motor V-Belt (Lower) - Bernina Part #305.163.03 - Models 707-900
Description
Description
Replacement Motor V-Belt (Lower) for Bernina Vintage Sewing Machines
Original style replacement lower motor V-belt designed for select vintage Bernina sewing machines. This smooth V-belt transfers power from the motor to the machine's drive system, ensuring reliable operation of these classic Bernina models.
Product Specifications
- Part Number: 305.163.03
- Type: Motor V-belt (lower)
- Size: 5mm x 236mm
- Style: Original style replacement
- Compatibility: Select vintage Bernina 700, 800, and 900 series models (see list below)
Compatible Bernina Models
700 Series: 707, 708, 709, 717, 718, 719, 727, 728, 729
800 Series: 801, 801S, 802, 802S, 803, 803S, 807, 808, 809, 810, 811, 817, 818, 819
900 Series: 900
Key Features
- Lower V-Belt: Specifically the lower motor belt in the drive system
- Smooth V-Design: Uses friction drive (not toothed like cog belts)
- 5mm x 236mm Size: Proper dimensions for correct fit and tension
- Original Style: Manufactured to original specifications
- Essential Drive Component: Transfers power from motor to machine mechanism
- Quality Replacement: Reliable performance for vintage Bernina models
When to Replace Your Motor V-Belt
- Belt is cracked, glazed, or shows visible wear
- Belt has stretched and slips during operation
- Machine runs sluggishly or loses power
- Belt makes squealing noises during operation
- Machine won't run or runs intermittently
- Belt shows fraying or separation
- As preventive maintenance every few years of regular use
Understanding V-Belts vs. Cog Belts
V-belts use a smooth, wedge-shaped design that relies on friction between the belt and pulley grooves to transfer power. This is different from cog belts (used on newer Bernina models) which have teeth that mesh with toothed pulleys. V-belts are simpler but can slip if worn or improperly tensioned, while cog belts provide positive engagement.
Belt System for These Models
These Bernina models use a two-belt V-belt system:
- Upper Belt (Part #305.201.13): 5mm x 422mm - available separately
- Lower Belt (Part #305.163.03): 5mm x 236mm - this product
Consider replacing both belts at the same time if performing major maintenance, especially if one belt shows significant wear.
Installation Tips
- Check belt tension after installation - should be snug but not overly tight
- Inspect pulleys for wear, cracks, or glazing when replacing belt
- Ensure belt seats properly in pulley grooves
- V-belts should not be twisted during installation
- Consider replacing both upper and lower belts together
- Keep spare belts on hand for future maintenance
- Allow new belt to seat in for first few hours of operation
About Bernina 700, 800, and 900 Series Models
The Bernina 700, 800, and 900 series are highly regarded vintage sewing machines known for their robust construction and excellent stitch quality. These classic models use V-belt drive systems for reliable power transfer. Regular replacement of wear items like motor belts is essential to keep these vintage machines running smoothly and reliably for generations.
Note
This is an original style quality replacement motor V-belt designed to meet original specifications. This is the lower motor belt - verify your model is listed before ordering. Some mechanical knowledge is helpful for belt replacement.
Specifications
Specifications
-
Brand
-
Condition
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
