Product Description
The R+W BKL torsionally stiff bellows coupling combines backlash-free torque transmission with a compact, lightweight design for precision motion control applications. Engineered with a high-quality metal bellows and clamping hub connection, the BKL offers excellent torsional stiffness, low rotational inertia and reliable compensation of shaft misalignment while maintaining accurate positioning and repeatability. Ideal for servo motors, encoders, linear drives and automated machinery, the BKL delivers maintenance-free operation, high dynamic performance and long service life in space-constrained installations.
| Bore Size | 6mm each side |
| Bore Type | Pilot bore |
| Type | Complete coupling |
| Model | BKL |
| Outside Diameter | 40mm |
| Overall Length | 44mm |
| Shaft Coupling Type | Precision bellows coupling |
| Shaft Misalignment Type | Parallel, Angular, Axial |
| Max Misalignment | 1mm axial; 0.2mm lateral; 1° angular. |
| Maximum Speed | 10,000 rpm |
| Operating Temperature Range | -30°C to 100°C |
| Brand | R+W |
| Unit | Each |
| Material | Aluminium hubs, stainless steel bellows. |
| Max Bore |
24mm each side |
| Nominal Torque |
10Nm |
FAQs
1. What does your range of industrial products cover?
We specialise in power transmission, vibratory equipment and conveyor components. Our catalogue includes belts, bearings, electric vibratory motors, couplings, chain, pulleys, sprockets, pneumatic impactors and more.
2. How can I place an order?
You can place an order directly on our website by adding products to your cart and checking out, for bulk orders use the quick order form online. For business customers putting products on their account, login is required. We are also contactable at sales@rrfisher.co.nz or by calling 0800 235 877.
3. Where will my product be dispatched from?
RR Fisher operates a central warehouse dispatching products the same day for delivery to all the main centres and most regional centres in New Zealand the following working day. Our delivery partner is NZ Couriers. Any queries on the delivery status of your order please call us on 0800 235 877.
4. What payment methods to you accept?
All major credit / debit cards, Credit Account (for approved business accounts).
5. What are your stock levels?
We hold a large number of SKU’s in stock in order to fulfil your needs immediately. We display our stock levels online.
Delivery Information
At RR Fisher, we ensure a smooth and reliable delivery process for all our customers using trusted freight providers and focusing on an overnight delivery. Below you’ll find details about our shipping options, processing times and policies.
Standard delivery: Courier size parcels are delivered to all major New Zealand locations the following working day.
Rural delivery: Rural delivery maybe 2-3 working days.
Order Processing
- Orders are processed Monday to Friday excluding public holidays.
- Orders received before 3pm will be dispatched the same day.
Shipping costs
- Costs are based on order weight and destination.
Damaged or Missing Items
- If your order arrives damaged or incomplete please note this with the delivery driver and contact us on sales@rrfisher.co.nz or 0800 235 877 so we can get this rectified for you.