Featured Products
Quick Clamping Shaft Collar Easily adjustable with integrated lever No tools required Designed for quick re...
Ruland ENCL45-20MM-A is a one-piece shaft collar with a 20mm bore, 45mm OD, and 10mm width. The thin line design reduces weight and allows for us...
Stainless Steel Collars One and two piece collars in stainless steel Collars do not score the shaft Easily installe...
Stainless Steel Flexible Shaft Couplings Designed to perform where higher speeds, greater misalignment, and...
Clamp Style Clamp style jaw couplings from Ruland. These couplings have a large torque capacity and a balanced desi...
Stainless Steel Flexible Shaft Couplings Designed to perform where higher speeds, greater misalignment, and...
Popular Categories For Ruland
Categories For Ruland
Popular Items
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MQCL-12-A, Ruland
Quick Clamping Shaft Collar
Easily adjustable with integrated lever
No tools required
Designed for quick repositioning
Resists corrosion: Anodised aluminium with black sulphuric finish body; gold anodised cam lever
Popular items
Popular items
OF-MCL-40-SS, Ruland
Ruland OF-MCL-40-SS is a one-piece shaft collar with 40mm bore, 60mm OD, and 15mm width. OF-MCL-40-SS has OD flats and tapped holes for mounting shaft collars to each other or adjacent components. The clamp style design does not mar the shaft, is easy to remove, and is indefinitely adjustable. OF-MCL-40-SS is commonly used for guiding, spacing, stopping, mounting, and component alignment. Equipment manufacturers benefit from the tightly controlled face to bore perpendicularity (TIR of ≤ .05mm). Perpendicularity is critical for alignment when the shaft collar is used as a load bearing face, mechanical stop, or for mounting components such as gears or bearings. Proprietary processes have been developed by Ruland to maintain superior fit, finish, and holding power.
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MBC25-8-8-A, Ruland
Dimensions
Size Code
OD (mm)
L (mm)
L1 (mm)
1
15
25
8.65
2
19
30
10.4
3
25
33
11.85
4
33
40
15.00
5
41
51
18.05
6
51
59
20.55
Size Code
Max. Static Torque (Nm)
Torsional Stiffness (Nm /Deg )
Max. Axial Offset (mm)
Max. Angular Offset (°)
Max. Parallel Misalignment (mm)
1
2.50
8
0.20
1.50
0.10
2
4.50
14
0.25
1.50
0.10
3
6.80
27
0.30
1.50
0.10
4
13.60
45
0.40
1.50
0.15
5
28.00
63
0.50
2.00
0.25
6
45.20
108
0.50
2.00
0.25
Ruland MBC25-8-8-A is a bellows coupling with 8mm x 8mm bores, 25.4mm OD, and 33.3mm length. It is zero-backlash and has a balanced design for reduced vibration at high speeds. MBC25-8-8-A is comprised of two anodized aluminum hubs and a stainless steel bellows. The bellows are able to flex while remaining rigid under torsional loads allowing for all types of misalignment to be accommodated. This bellows coupling is lightweight and has low inertia making it suitable for applications with speeds up to 10,000 RPM. Hardware is metric and tests beyond DIN 912 12.9 standards for maximum torque capabilities. Ruland manufactures MBC25-8-8-A to be torsionally rigid and an excellent fit for precise positioning stepper servo applications as well as encoders. It is machined from solid bar stock that is sourced exclusively from North American mills. MBC25-8-8-A is carefully manufactured in our Marlborough, MA factory under strict controls using proprietary processes.
Popular items
FCMR38-16-16-SS, Ruland
Stainless Steel Flexible Shaft Couplings
Designed to perform where higher speeds, greater misalignment, and limited lubrication would exceed the capabilities of other couplings. Each coupling is manufactured as one piece, thereby eliminating mechanical joints and possible failure points.Two fixing styles available:,Typical applications include encoders, stepper motors, robotics, measuring instruments, servo systems, pumps, valves, fans etc., (i) Set Screw style is secured using one grub-screw per shaft (staggered at 120°) , (ii) Clamp style fixing uses one socket head cap screw per shaft.
Constant velocity couplings with high torque capacity and zero backlash
Torsionally rigid one-piece construction
Not temperature sensitive
High or low speed operation and reversible
No lubrication required
Up to 3° of axial misalignment allowable
Note
The coupling shown represents the clamp style fixing
Popular items
FCR20-8-8-A, Ruland
Aluminium Flexible Shaft Couplings
Designed to perform where higher speeds, greater misalignment, and limited lubrication would exceed the capabilities of other couplings. Each coupling is manufactured as one piece, thereby eliminating mechanical joints and possible failure points.Two fixing styles available:,Typical applications include encoders, stepper motors, robotics, measuring instruments, servo systems, pumps, valves, fans etc., (i) Set Screw style is secured using one grub-screw per shaft (staggered at 120°) , (ii) Clamp style fixing uses one socket head cap screw per shaft.
Constant velocity couplings with high torque capacity and zero backlash
Torsionally rigid one-piece construction
Not temperature sensitive
High or low speed operation and reversible
No lubrication required
Up to 3° of axial misalignment allowable
Note
The coupling illustrated shows the Clamp style fixing.
Popular items
OCT16-4-A, Ruland
Ruland Oldham Coupling Hub - Clamp Style
Ruland Clamp Style Oldham Couplings are ideally suited to enable shafts to be coupled with a small amount of axial and angular misalignment present. The three-piece design consists of two hubs linked by a centre torque disc. The Clamp Style Hubs are manufactured from black anodised aluminium, with replaceable centre discs manufactured from acetal or nylon. Oldham couplings are ideal for light industrial and motion control applications, and, due to their unique design, Oldham couplings offer the ability to protect machinery from torque overload forces (acting as torque limiters), with centre discs that are able to break cleanly.
2 hubs and 1 torque disc required per assembly
Technical specification
Size Code
Hub Depth (mm)
Depth of Bore (mm)
Hub Outside Diameter (mm)
Overall Coupling Assembly Length (mm)
Set Screws
19
9.7
9.7
19.1
25.4
M2.5
25
11.9
31.8
25.4
11.9
M3
33
15
47.6
33.3
15
M3
41
18
50.8
41.3
18
M4
51
20.8
59.7
50.8
20.8
M5
57
28.7
78.7
57.2
28.7
M6
Note
Not supplied as a complete unit
; 2 Hubs and 1Torque Disc required per assembly.
Ruland Oldham Style Couplings
Paradrive™ couplings are ideal for motion control applications, especially those utilising stepper or servo motors. Their low inertia design is ideally suited to higher speed applications and where electrical isolation is also required. Small angular and axial misalignments may be accommodated.
Securing: 13mm and 19mm anodised aluminium hubs are secured to the shafts with one set screw on each end. 33mm, 35mm and 41mm hubs have 2 set screws set 90° apart
Popular items
MSP-30-P, Ruland
Plastic Collars
One and two piece collars in plastic
Collars do not score the shaft
Easily installed and adjusted
Dimensions
Clamp Type
Bore (mm)
OD (mm)
Width (mm)
Clamp Screw
Tightening Torque (Nm)
3
5
16
9
M3 x 8
2.1
4
6
16
9
M3 x 8
2.1
5
8
18
9
M3 x 8
2.1
6
10
24
9
M3 x 8
2.1
7
12
28
11
M4 x 12
4.6
8
14
30
11
M4 x 12
4.6
9
15
34
13
M5 x 16
9.5
10
16
34
13
M5 x 16
9.5
11
20
40
15
M6 x 16
16
12
22
42
15
M6 x 16
16
13
25
45
15
M6 x 16
16
14
28
48
15
M6 x 16
16
15
30
54
15
M6 x 18
16
Popular items
MJC25-10-A, Ruland
Clamp Style
Clamp style jaw couplings from Ruland. These couplings have a large torque capacity and a balanced design. To complete your assembly two hubs must be purchased. A jaw spider must be placed in between these couplings. Please view our essential extras for suitable jaw spider torque disks.
Note
Coupling shown for illustration purposes only.
Two
hubs required per coupling assembly. A complete coupling assembly comprises
two
hubs
plus an appropriate
torque disc
; note that these parts must all be
ordered separately
Jaw Couplings
A range of zero backlash curved jaw couplings. Three piece coupling comprising two aluminium hubs and an elastic insert (spider). Polyurethane spider provides damping of impulse loads, minimising shock to the motor and other sensitive equipment. Offered in two hardness levels the spiders can be used to customise the coupling performance.
Low to medium torsional rigidity and strength
An electrically isolating coupling solution
A balanced design suited to high bearing loads and moderate inertia
Accommodates slight angular, axial and parallel misalignments
One complete coupling comprises two aluminium hubs and a spider (order separately)
Use 92 Shore spider to give the best dampening characteristics and 98 Shore spider for the best torsional rigidity
Snap fit spider ensures zero backlash and high torque capabilities
Fail-safe design allowing operation of coupling even if spider element fails
2 hubs required per coupling assembly
Nominal Size (mm)
Hardness (Shore A)
Maximum Angular Misalignment (mm)
Maximum Axial Misalignment (mm)
Maximum Axial Motion (mm)
Rated Torque (Nm)
Torsional Stiffness (Nm/rad.)
Break Torque (Nm)
19
92
1
0.13
0.8
3
31
3
19
98
1
0.08
0.8
5
50
5
25
92
1
0.15
1.0
7
115
7
25
98
1
0.09
1.0
12
175
12
33
92
1
0.15
1.0
9
590
9
33
98
1
0.09
1.0
15
890
15
Popular items
OD12/19-AT, Ruland
Torque Discs
Nylon discs (resilient) - help dampen vibration and noise,Acetal discs (backlash-free) - designed for precise applications requiring zero backlash and higher torque capacity
Technical specification
Size Code
Maximum Angular Misalignment (deg.)
Maximum Parallel Misalignment (mm)
Maximum Axial Motion (mm)
13
0.5
0.1
0.05
19
0.5
0.1
0.1
25
0.5
0.1
0.1
33
0.5
0.1
0.15
41
0.5
0.1
0.15
51
0.5
0.1
0.2
57
0.5
0.1
0.2
Note
Size 13 discs not suitable for use with clamp style couplings
Ruland Oldham Style Couplings
Paradrive™ couplings are ideal for motion control applications, especially those utilising stepper or servo motors. Their low inertia design is ideally suited to higher speed applications and where electrical isolation is also required. Small angular and axial misalignments may be accommodated.
Securing: 13mm and 19mm anodised aluminium hubs are secured to the shafts with one set screw on each end. 33mm, 35mm and 41mm hubs have 2 set screws set 90° apart
Popular items
OD26/41-AT, Ruland
Torque Discs
Nylon discs (resilient) - help dampen vibration and noise,Acetal discs (backlash-free) - designed for precise applications requiring zero backlash and higher torque capacity
Technical specification
Size Code
Maximum Angular Misalignment (deg.)
Maximum Parallel Misalignment (mm)
Maximum Axial Motion (mm)
13
0.5
0.1
0.05
19
0.5
0.1
0.1
25
0.5
0.1
0.1
33
0.5
0.1
0.15
41
0.5
0.1
0.15
51
0.5
0.1
0.2
57
0.5
0.1
0.2
Note
Size 13 discs not suitable for use with clamp style couplings
Ruland Oldham Style Couplings
Paradrive™ couplings are ideal for motion control applications, especially those utilising stepper or servo motors. Their low inertia design is ideally suited to higher speed applications and where electrical isolation is also required. Small angular and axial misalignments may be accommodated.
Securing: 13mm and 19mm anodised aluminium hubs are secured to the shafts with one set screw on each end. 33mm, 35mm and 41mm hubs have 2 set screws set 90° apart
Popular items
New Items
New items
MQCL-12-A, Ruland
Quick Clamping Shaft Collar
Easily adjustable with integrated lever
No tools required
Designed for quick repositioning
Resists corrosion: Anodised aluminium with black sulphuric finish body; gold anodised cam lever
New items
ENCL45-20MM-A, Ruland
Ruland ENCL45-20MM-A is a one-piece shaft collar with a 20mm bore, 45mm OD, and 10mm width. The thin line design reduces weight and allows for use in confined spaces. It has the clamp style benefits of not marring the shaft, easy removability, and indefinite adjustability while commonly being used for guiding, spacing, stopping, mounting, and component alignment. Equipment manufacturers benefit from the tightly controlled face to bore perpendicularity (TIR of ≤ .002"). Perpendicularity is critical for alignment when the shaft collar is used as a load bearing face, mechanical stop, or for mounting components such as gears or bearings. Proprietary processes have been developed by Ruland to maintain superior fit, finish, and holding power.
New items
MCL-5-SS, Ruland
Stainless Steel Collars
One and two piece collars in stainless steel
Collars do not score the shaft
Easily installed and adjusted
Dimensions
Clamp Type
Bore (mm)
OD (mm)
Width (mm)
Clamp Screw
Tightening Torque (Nm)
1
3
16
9
M3 x 8
1.1
2
4
16
9
M3 x 8
1.1
3
5
16
9
M3 x 8
1.1
4
6
16
9
M3 x 8
1.1
5
8
18
9
M3 x 8
1.1
6
10
24
9
M3 x 8
1.1
7
12
28
11
M4 x 12
2.5
8
14
30
11
M4 x 12
2.5
9
15
34
13
M5 x 16
5.4
10
16
34
13
M5 x 16
5.4
11
20
40
15
M6 x 16
9.6
12
22
42
15
M6 x 16
9.6
13
25
45
15
M6 x 16
9.6
14
28
48
15
M6 x 16
9.6
15
30
54
15
M6 x 18
9.6
16
35
57
15
M6 x 18
9.6
17
40
60
15
M6 x 18
9.6
18
50
78
19
M8 x 25
23
Ruland MCL-5-SS is a one-piece shaft collar with a 5mm bore, 16mm OD, and 9mm width. The clamp style design does not mar the shaft, is easy to remove, and is indefinitely adjustable. It is commonly used for guiding, spacing, stopping, mounting, and component alignment. Equipment manufacturers benefit from the tightly controlled face to bore perpendicularity (TIR of ≤ .05mm). Perpendicularity is critical for alignment when the shaft collar is used as a load bearing face, mechanical stop, or for mounting components such as gears or bearings. Proprietary processes have been developed by Ruland to maintain superior fit, finish, and holding power. MCL-5-SS is stamped with the Ruland name and bore size for ease of identification.
New items
MWC20-6-6-SS, Ruland
Stainless Steel Flexible Shaft Couplings
Designed to perform where higher speeds, greater misalignment, and limited lubrication would exceed the capabilities of other couplings. Each coupling is manufactured as one piece, thereby eliminating mechanical joints and possible failure points.Two fixing styles available:,Typical applications include encoders, stepper motors, robotics, measuring instruments, servo systems, pumps, valves, fans etc., (i) Set Screw style is secured using one grub-screw per shaft (staggered at 120°) , (ii) Clamp style fixing uses one socket head cap screw per shaft.
Constant velocity couplings with high torque capacity and zero backlash
Torsionally rigid one-piece construction
Not temperature sensitive
High or low speed operation and reversible
No lubrication required
Up to 3° of axial misalignment allowable
Note
The coupling shown represents the clamp style fixing
New items
MJC33-12-A, Ruland
Clamp Style
Clamp style jaw couplings from Ruland. These couplings have a large torque capacity and a balanced design. To complete your assembly two hubs must be purchased. A jaw spider must be placed in between these couplings. Please view our essential extras for suitable jaw spider torque disks.
Note
Coupling shown for illustration purposes only.
Two
hubs required per coupling assembly. A complete coupling assembly comprises
two
hubs
plus an appropriate
torque disc
; note that these parts must all be
ordered separately
Jaw Couplings
A range of zero backlash curved jaw couplings. Three piece coupling comprising two aluminium hubs and an elastic insert (spider). Polyurethane spider provides damping of impulse loads, minimising shock to the motor and other sensitive equipment. Offered in two hardness levels the spiders can be used to customise the coupling performance.
Low to medium torsional rigidity and strength
An electrically isolating coupling solution
A balanced design suited to high bearing loads and moderate inertia
Accommodates slight angular, axial and parallel misalignments
One complete coupling comprises two aluminium hubs and a spider (order separately)
Use 92 Shore spider to give the best dampening characteristics and 98 Shore spider for the best torsional rigidity
Snap fit spider ensures zero backlash and high torque capabilities
Fail-safe design allowing operation of coupling even if spider element fails
2 hubs required per coupling assembly
Nominal Size (mm)
Hardness (Shore A)
Maximum Angular Misalignment (mm)
Maximum Axial Misalignment (mm)
Maximum Axial Motion (mm)
Rated Torque (Nm)
Torsional Stiffness (Nm/rad.)
Break Torque (Nm)
19
92
1
0.13
0.8
3
31
3
19
98
1
0.08
0.8
5
50
5
25
92
1
0.15
1.0
7
115
7
25
98
1
0.09
1.0
12
175
12
33
92
1
0.15
1.0
9
590
9
33
...
New items
MWC15-3-3-SS, Ruland
Stainless Steel Flexible Shaft Couplings
Designed to perform where higher speeds, greater misalignment, and limited lubrication would exceed the capabilities of other couplings. Each coupling is manufactured as one piece, thereby eliminating mechanical joints and possible failure points.Two fixing styles available:,Typical applications include encoders, stepper motors, robotics, measuring instruments, servo systems, pumps, valves, fans etc., (i) Set Screw style is secured using one grub-screw per shaft (staggered at 120°) , (ii) Clamp style fixing uses one socket head cap screw per shaft.
Constant velocity couplings with high torque capacity and zero backlash
Torsionally rigid one-piece construction
Not temperature sensitive
High or low speed operation and reversible
No lubrication required
Up to 3° of axial misalignment allowable
Note
The coupling shown represents the clamp style fixing
New items
New items
New items
New items
New items
New items
Don’t hesitate to ask questions for better clarification.