Curved Rail Linear System (CR40 Series)

For applications where you don’t want to move in a straight line, we offer our curved rail linear guide products.

The rails are machined from carbon steel blanks, then surface heat treated to provide a hard wear resistant surface. Additional post treatment results in a satin black color appearance. Standard catalog products available now are straight, 90-degree turn, and 180 degree turn rail sections. These are standard off-the-shelf items for those who wish to build their own systems. CR40 Series Carriages are designed with three cam roller wheels for smooth movement.

For OEM applications we will make “custom” rail sections.

For many applications our standard catalog offering listed below will allow you to construct a complete system.

Below is a list of components required to make the example closed loop curved rail system in the sketch below.

Example Bill of Materials (BOM)

	Part Number	Description	Qty
1	CR40-L470-NB	Straight Rail Section, Length is 470 mm	2
2	CR40-R200-A180-NB	180 Deg, 200 mm radius Turn Section	2
3	CR40-C3-M6-NB	Carriage with M6 threaded holes	1

Rail sections for any of the straight or turn pieces can be "butt" join together to allow smooth transition of the carriage as it moves along the track.

To assist in making the best possible alignment on your end during installation, it is advisable to purchase an alignment tool.

It is important to also note that the base upon which you install the rail sections should machined flat and of good structural integrity.

Photo of alignment tool

CR40 Series Rail Section Features

Black Color Satin Finish Appearance

Heat Treated Surface Hardened Rails

Straight Rail Lengths up to 1220 mm (48 inches)

90 Degree Turn Sections with radius of 150 mm

180 Degree Turn Sections with radius as small as 100 mm

Typical Lead-time is 2-3 days

Carriage and Rail Assembly Photos

Below are photos of the CR40-C3-NO-NB Carriage with and without a straight rail section.

Carriage assembly is made of square shaped plate (12.7 mm thick) with three cam roller bearings attached. It is made of unhardened steel to allow for additional machining if customer wishes to add their own mounting holes.

Total height from bottom of rail to top of carriage is 28.7 mm.

Clearance between the bottom of the each cam roller to the bottom of the rail is approximately 1.3 mm.

Below is a list of available Carriage Assemblies ready and in stock.

PART NUMBER	Series Size	Axial Static Load Cap. (N)	Axial Static Load Cap. (lbs)	Radial Static Load Cap. (N)	Radial Static Load Cap. (lbs)	Moment Static Roll Mx. (N-m)	Moment Static Roll My. (N-m)	Moment Static Roll Mz. (N-m)	Carriage Width (mm)	Carriage with Tapped Holes	Net Wt. (kg)	Net Wt. (lbs)	Price (USD)	2D PDF Drawing
CR40-C3-M6-NB	40	133.4	30	222.4	50	2.63	6.0	3.0	75.0	Yes	0.53	1.1	$182.77
CR40-C3-NO-NB	40	133.4	30	222.4	50	2.63	6.0	3.0	75.0	No	0.54	1.2	$182.77

Below are some example part numbers with product pictures.

CR40 Carriage and 180 Degree Turn Example

For a system consisting of carriages and rails the typical lead-time is 2-3 days.

Lubricant Requirements

Applying a small amount of an NLGI #2 lithium-based grease with no solid additives such as MoS2 (molybdenum disulfide) along the surface where the cam roller wheel contacts the rail is recommended for quiet operation and long life.

Alignment Tool

Part number is CR40-ALIGNTOOL

Price is $50.00 each

Below is a list of available Rail Sections ready and in stock.

Clicking on the part number will immediately take you to our online store.

PART NUMBER	Series Size	Rail Section Type	Rail Length (mm)	Rail Length (inches)	Turn Radius (mm)	Turn Radius (inches)	Rail Material	Net Wt. (kg)	Net Wt. (lbs)	Price (USD)
CR40-L170-NB	40	Straight	170	6.7			Steel	0.36	0.8	$127.75
CR40-L320-NB	40	Straight	320	12.6			Steel	0.69	1.5	$162.23
CR40-L470-NB	40	Straight	470	18.5			Steel	1.00	2.2	$202.81
CR40-L620-NB	40	Straight	620	24.4			Steel	1.35	3.0	$243.34
CR40-L770-NB	40	Straight	770	30.3			Steel	1.68	3.7	$283.87
CR40-L920-NB	40	Straight	920	36.2			Steel	2.00	4.4	$324.45
CR40-L1070-NB	40	Straight	1070	42.1			Steel	2.33	5.1	$365.03
CR40-L1220-NB	40	Straight	1220	48.0			Steel	2.66	5.7	$405.56

CR40-R150-A90-NB	40	90 Deg Turn			150	5.9	Steel	0.97	2.1	$194.67

CR40-R100-A180-NB	40	180 Deg Turn			100	3.9	Steel	1.18	2.6	$227.12
CR40-R150-A180-NB	40	180 Deg Turn			150	5.9	Steel	1.52	3.4	$259.56
CR40-R200-A180-NB	40	180 Deg Turn			200	7.9	Steel	1.88	4.2	$292.01
CR40-R250-A180-NB	40	180 Deg Turn			250	9.8	Steel	2.22	4.9	$324.45
CR40-R300-A180-NB	40	180 Deg Turn			300	11.8	Steel	2.55	5.6	$389.34
CR40-R350-A180-NB	40	180 Deg Turn			350	13.8	Steel	2.89	6.4	$454.23

Indicates that we are temporary out of stock on this item.

4215 Pleasant Rd

Fort Mill, SC 29708

Customer Service

800-284-9784

Mobile Device Detected

We Design and Manufacture OEM Custom systems and subassemblies.

Curved Rail Linear System (CR40 Series)

Example Bill of Materials (BOM)

CR40 Series Rail Section Features

Black Color Satin Finish Appearance

Heat Treated Surface Hardened Rails

Straight Rail Lengths up to 1220 mm (48 inches)

90 Degree Turn Sections with radius of 150 mm

180 Degree Turn Sections with radius as small as 100 mm

Typical Lead-time is 2-3 days

Carriage and Rail Assembly Photos

Below is a list of available Carriage Assemblies ready and in stock.

Below are some example part numbers with product pictures.

Lubricant Requirements

Alignment Tool

Below is a list of available Rail Sections ready and in stock.

4215 Pleasant Rd

Fort Mill, SC 29708

Customer Service

800-284-9784

Mobile Device Detected

We Design and Manufacture OEM Custom systems and subassemblies.

Curved Rail Linear System (CR40 Series)

Example Bill of Materials (BOM)

CR40 Series Rail Section Features

Black Color Satin Finish Appearance Heat Treated Surface Hardened Rails Straight Rail Lengths up to 1220 mm (48 inches) 90 Degree Turn Sections with radius of 150 mm 180 Degree Turn Sections with radius as small as 100 mm

Typical Lead-time is 2-3 days

Carriage and Rail Assembly Photos

Below is a list of available Carriage Assemblies ready and in stock.

Below are some example part numbers with product pictures.

Lubricant Requirements

Alignment Tool

Below is a list of available Rail Sections ready and in stock.

Black Color Satin Finish Appearance

Heat Treated Surface Hardened Rails

Straight Rail Lengths up to 1220 mm (48 inches)

90 Degree Turn Sections with radius of 150 mm

180 Degree Turn Sections with radius as small as 100 mm