Shop All Motion Control Couplings
Ruland
Clamp Bellows Cplg, Bores 11mmx0.375", OD 1.313", L 1.688", Aluminum
Mfr # BC21-11MM-3/8"-A
Zoro # G3425487
product price: $96.85
/ea
Free Shipping & Returns
$96.85
Free Shipping on orders over $50
after youÂ
Free 30-Day Returns
Key Features
- Bore Dia. 11 mm x 0.375 in
- Max. RPM 10000 RPM
- Outside Dia. 1.313 in (33.3 mm)
- Overall Length 1.688 in (42.9 mm)
- Torsional Stiffness (Deg./In.-Lbs.) 400 lb-in/Deg (45 Nm/Deg)
Get 10% Off Your First Order
Real Support From Real People
Contact Our U.S.-Based teams
Free 30-Day Returns
Return Policy
Accepted Payment Options
![paypal](https://www.zoro.com/static/assets/img/base/icons/paypal-81447b0e73.png)
Product Information
- Brand Ruland
- MFR # BC21-11MM-3/8"-A
- Zoro # G3425487
- UPC # 634529233016
- Country of Origin United States
- Category Motion Control Couplings
Dimensions
Bore Dia. | 11 mm x 0.375 in |
Outside Dia. | 1.313 in (33.3 mm) |
Overall Length | 1.688 in (42.9 mm) |
Screw Size | M3 |
Length | 1.688 in (42.9 mm) |
Fastening Dimensions | Metric |
Description
Ruland standard length bellows couplings are a high torque zero-backlash coupling commonly found in responsive systems on semiconductor, solar, test and measurement, and printing equipment. This clamp type bellows coupling consists of two anodized aluminum hubs and a stainless steel bellows creating a lightweight low inertia coupling. It has 11mm x 0.375" bores, 1.313" (33.3mm) OD, and 1.688" (42.9mm) length. This coupling has a four convolution bellows for higher torque and torsional stiffness capabilities than equivalent couplings with more convolutions. The bellows are able to flex while remaining rigid under torsional loads allowing for all types of misalignment to be accommodated. This bellows coupling has a balanced design for reduced vibration at high speeds of up to 10,000 RPM. Hardware is metric and tests beyond DIN 912 12.9 standards. It is RoHS and REACH compliant.
Ratings & Reviews
3 Reasons You Can Count On Us
Supplies for every job.
10 million items and the exact one you need.
When you need it fast, count on Zoro!
2 million products ship in 1 day.
Stretch your budget further.
Everyday low prices on the brands you love.
Explore More Products
- CAMOZZI Male Connector, 5/16" OD X 1/8" NPT (P6510 05-02)
- BALDOR-RELIANCE Motor, Farm, 1-1/2 HP, 1725 rpm, 1-Phase (FDL3514M)
- AMETEK Replacement Motor Brush Set, 240 VAC, PK2 (833474-51)
- FESTO One-Way Flow Control Valve GR-3/8-B (GR-3/8-B)
- RULAND Keyed Clamp Bellows Cplg, Bores 0.750"x16mm, OD 1.625", L 2.000", Alum (BCK26-3/4"-16MM-A)
- RULAND Coupling, 6 Beam Clamp, Bore 5/8 x 5/8 In (FCR24-10-10-SS)
- RULAND Coupling, Oldham Coupling Disc (OD8/13-AT)
- RULAND Coupling, 6 Beam Clamp, Bore 3/4 x 5/8 In (FCR24-12-10-SS)
- RULAND Coupling, 6 Beam Clamp, Bore 1/4 x 1/4 In (FCR12-4-4-SS)
- RULAND Slit Coupling, Set Screw, Short, Bores 4x4mm, OD 8.0mm, Aluminum (MRSS8-4-4-A)
- RULAND Coupling, Bellows Clamp, Bore 1/4x1/4 In (BC10-4-4-A)
- Ruland Motion Control Couplings