Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
RULAND MANUFACTURING Balanced Shaft Collar: 2-Piece, Inch, Round, Clamp-On, 1/4 in Bore Dia - Stainless Steel Balanced Shaft Collars
RULAND MANUFACTURINGStainless Steel Balanced Shaft Collars

RULAND MANUFACTURING Balanced Shaft Collar: 2-Piece, Inch, Round, Clamp-On, 1/4 in Bore Dia

The RULAND MANUFACTURING Balanced Shaft Collar is a 2-piece, inch, round, clamp-on stainless steel shaft collar with a 1/4 in bore diameter, made from 303 stainless steel (MPN SPB-4-SS). This product is designed for…

SKU 3G-OTH-142579

Also listed as: SPB4SS · SPB 4 SS

Brand
RULAND MANUFACTURING
Item
Balanced Shaft Collar: 2-Piece, Inch, Round, Clamp-On, 1/4 in Bore Dia
Category
Stainless Steel Balanced Shaft Collars
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

RULAND MANUFACTURING
Manufacturer Part Number
SPB-4-SS
Type
Inch, Round, Clamp-On, 303
Bore Dia
1/4 in

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

RULAND MANUFACTURING Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RULAND MANUFACTURING Balanced Shaft Collar is a 2-piece, inch, round, clamp-on stainless steel shaft collar with a 1/4 in bore diameter, made from 303 stainless steel (MPN SPB-4-SS). This product is designed for applications requiring balanced, secure shaft attachment.

Frequently Asked Questions

What is a Ruland Manufacturing balanced shaft collar used for?

A Ruland Manufacturing balanced shaft collar secures components on a shaft without marring the surface. The 2-piece clamp-on design allows easy positioning and high holding power. It is commonly used in precision motion control, robotics, and automation applications where balance and concentricity are critical.

What are the specifications of the Ruland SPB-4-SS balanced shaft collar?

The Ruland SPB-4-SS is a 2-piece, inch, round, clamp-on balanced shaft collar with a 1/4 in bore diameter. It is made from 303 stainless steel for corrosion resistance. This model is designed for applications requiring reduced vibration and precise shaft positioning.

Where to buy Ruland Manufacturing shaft collars worldwide?

3G Electric supplies Ruland Manufacturing shaft collars like the SPB-4-SS to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this precision component.

How to install a 2-piece clamp-on shaft collar?

To install a 2-piece clamp-on shaft collar, loosen the screws, place both halves around the shaft at the desired position, then tighten the screws evenly to the manufacturer's recommended torque. Ensure the shaft is clean and free of burrs. This design allows repositioning without disassembling the assembly.

Used in

Common applications for RULAND MANUFACTURING
Automated packaging machinery — Ruland beam couplings (e.g., PSR20-8-5-A) for connecting servo motors to conveyor drive shafts.
CNC machine tools — Ruland rigid couplings (e.g., CLX-4-4-A) for precise alignment of ball screw assemblies.
Robotic arm joints — Ruland Oldham coupling hubs (e.g., OSC16-6-A) for accommodating axial motion in end-effector drives.
Pump and compressor systems — Ruland stainless steel shaft collars (e.g., CL-3-ST) for securing impeller shafts.
Printing press rollers — Ruland clamp-on beam couplings (e.g., PCR18-8-8-A) for synchronizing roller rotation with minimal backlash.
Material handling conveyors — Ruland set screw couplings (e.g., PSMR29-7-7-A) for linking gearboxes to drive rollers.

RULAND MANUFACTURING Products

3G Electric supplies RULAND MANUFACTURING stainless steel balanced shaft collars. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
This 2-piece, clamp-on shaft collar is made from 303 stainless steel with a 3 in bore diameter. It is designed for inch, round shafts and provides balanced clamping for high-speed applications. Typical uses include securing components on rotating shafts in machinery and automation equipment
RULAND MANUFACTURING
This 2-piece, clamp-on shaft collar is made from 303 stainless steel with a 3 in bore diameter. It is designed for inch, round shafts and provides balanced clamping for high-speed applications. Typical uses include securing components on rotating shafts in machinery and automation equipment
RULAND MANUFACTURING Balanced Shaft Collar: 2-Piece, Inch, Round, Clamp-On, 1/4 in Bore Dia, 316 (MPN SPB-4-ST)
RULAND MANUFACTURING
RULAND MANUFACTURING Balanced Shaft Collar: 2-Piece, Inch, Round, Clamp-On, 1/4 in Bore Dia, 316 (MPN SPB-4-ST)
This 2-piece, inch, round, clamp-on shaft collar has a 2 15/16 in bore diameter and is made from 303 stainless steel. It is designed for balanced shaft applications requiring precise clamping and corrosion resistance. Typical uses include securing components on rotating shafts in high-speed machinery where axial positioning and reduced vibration are critical
RULAND MANUFACTURING
This 2-piece, inch, round, clamp-on shaft collar has a 2 15/16 in bore diameter and is made from 303 stainless steel. It is designed for balanced shaft applications requiring precise clamping and corrosion resistance. Typical uses include securing components on rotating shafts in high-speed machinery where axial positioning and reduced vibration are critical
This 2-piece, round, clamp-on shaft collar is made from 303 stainless steel for corrosion resistance. It has a 3/8 in bore diameter and is designed for balanced clamping force in high-speed rotating applications. Used to secure components on a shaft without marring the surface
RULAND MANUFACTURING
This 2-piece, round, clamp-on shaft collar is made from 303 stainless steel for corrosion resistance. It has a 3/8 in bore diameter and is designed for balanced clamping force in high-speed rotating applications. Used to secure components on a shaft without marring the surface
RULAND MANUFACTURING Balanced Shaft Collar: 2-Piece, Inch, Round, Clamp-On, 2 7/16 in Bore Dia, 303 (MPN SPB-39-SS)
RULAND MANUFACTURING
RULAND MANUFACTURING Balanced Shaft Collar: 2-Piece, Inch, Round, Clamp-On, 2 7/16 in Bore Dia, 303 (MPN SPB-39-SS)
This 2-piece clamp-on shaft collar is made from 303 stainless steel with a 1 7/16 inch bore. It is designed for balanced operation on rotating shafts, reducing vibration in applications such as precision machinery and automation systems. The clamp-on style allows easy installation and repositioning without shaft damage
RULAND MANUFACTURING
This 2-piece clamp-on shaft collar is made from 303 stainless steel with a 1 7/16 inch bore. It is designed for balanced operation on rotating shafts, reducing vibration in applications such as precision machinery and automation systems. The clamp-on style allows easy installation and repositioning without shaft damage

More from RULAND MANUFACTURING

View all RULAND MANUFACTURING parts →
Metric, round, clamp-on shaft collar with a 54 mm bore diameter, made from 303 stainless steel. Two-piece design for easy installation and balanced construction suitable for high-speed rotating applications requiring precise axial positioning
RULAND MANUFACTURING
Metric, round, clamp-on shaft collar with a 54 mm bore diameter, made from 303 stainless steel. Two-piece design for easy installation and balanced construction suitable for high-speed rotating applications requiring precise axial positioning
This 2-piece, round, clamp-on shaft collar is made from 316 stainless steel with a 9/16 in bore diameter. It is designed to secure components on a shaft and prevent axial movement in rotating machinery, commonly used in precision equipment, conveyors, and industrial drives
RULAND MANUFACTURING
This 2-piece, round, clamp-on shaft collar is made from 316 stainless steel with a 9/16 in bore diameter. It is designed to secure components on a shaft and prevent axial movement in rotating machinery, commonly used in precision equipment, conveyors, and industrial drives
Inch, round, clamp-on balanced shaft collar made from 303 stainless steel. Bore diameter 2 1/2 in. Two-piece design for secure clamping without shaft marring. Used in high-speed rotating applications to minimize vibration
RULAND MANUFACTURING
Inch, round, clamp-on balanced shaft collar made from 303 stainless steel. Bore diameter 2 1/2 in. Two-piece design for secure clamping without shaft marring. Used in high-speed rotating applications to minimize vibration
This 2-piece, clamp-on shaft collar is made from 303 stainless steel with a 3/4 in bore diameter. It is designed for use in rotating machinery to secure components and prevent axial movement, suitable for applications requiring balance and concentricity
RULAND MANUFACTURING
This 2-piece, clamp-on shaft collar is made from 303 stainless steel with a 3/4 in bore diameter. It is designed for use in rotating machinery to secure components and prevent axial movement, suitable for applications requiring balance and concentricity
This 2-piece, inch, round, clamp-on shaft collar is made from 303 stainless steel with a 13/16 in bore diameter. It is designed for balanced, vibration-free mounting on shafts in high-speed rotating applications such as precision machinery and automation equipment
RULAND MANUFACTURING
This 2-piece, inch, round, clamp-on shaft collar is made from 303 stainless steel with a 13/16 in bore diameter. It is designed for balanced, vibration-free mounting on shafts in high-speed rotating applications such as precision machinery and automation equipment
Metric, round, clamp-on shaft collar with 8 mm bore diameter. Made from 303 stainless steel. Two-piece design for secure clamping without shaft marring. Used in precision motion control applications to secure components on a shaft and prevent axial movement
RULAND MANUFACTURING
Metric, round, clamp-on shaft collar with 8 mm bore diameter. Made from 303 stainless steel. Two-piece design for secure clamping without shaft marring. Used in precision motion control applications to secure components on a shaft and prevent axial movement
This 2-piece, clamp-on shaft collar is made from 303 stainless steel for corrosion resistance. It has a round design with a 2 9/16 in bore diameter and is balanced for high-speed applications. Used to secure components on a shaft and prevent axial movement in rotating machinery
RULAND MANUFACTURING
This 2-piece, clamp-on shaft collar is made from 303 stainless steel for corrosion resistance. It has a round design with a 2 9/16 in bore diameter and is balanced for high-speed applications. Used to secure components on a shaft and prevent axial movement in rotating machinery
This 2-piece, inch, round, clamp-on shaft collar is made from 303 stainless steel with a 9/16 in bore diameter. It is designed for high-speed rotating applications where balanced clamping and minimal vibration are required. The clamp-on design secures components without marring the shaft
RULAND MANUFACTURING
This 2-piece, inch, round, clamp-on shaft collar is made from 303 stainless steel with a 9/16 in bore diameter. It is designed for high-speed rotating applications where balanced clamping and minimal vibration are required. The clamp-on design secures components without marring the shaft