0.6250 in

0.590 in

1.313 in (33.3 mm)

+0.001 in / -0.000 in

0.590 in

1.750 in (44.5 mm)

+0.0000 in / -0.0005 in

M3

1 ea

Alloy Steel

Black Oxide

2.5 mm

2.1 Nm

Torque ratings vary with insert selection

Misalignment ratings vary with insert selection

8,000 RPM

0.018622 lb-in²

Yes

JD21/33-98R, JD21/33-92Y, JD21/33-85B

Yes

Yes

Yes

0.069200

-10°F to 180°F (-23°C to 82°C)

2024-T351 Aluminum Bar

Bright

Bright, No Plating

Ruland Manufacturing

0.030 in (0.75 mm)

USA

634529068434

31163011

8483.60.8000

Stainless steel hubs are available upon request.

Performance ratings are for guidance only. The user must determine suitability for a particular application.

Torque ratings for the couplings are based on the physical limitations/failure point of the spiders. Under normal/typical conditions the hubs are capable of holding up to the nominal torque of the spiders. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the nominal torque of the spiders. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance.

WARNING This product can expose you to the chemical Ethylene Thiourea, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

1. Align the bores of the JC21-10-A jaw coupling hubs on the shafts that are to be joined and determine if the misalignment parameters are within the limits of the coupling. (See spider for misalignment parameters.)
2. Fully tighten the M3 screw(s) on the first hub to the recommended seating torque of 2.1 Nm using a 2.5 mm hex torque wrench.
3. Insert a spider into the jaws of one hub until the raised points contact the base of the hub.
4. Insert the jaws of the second hub into the spider openings until the raised points contact the base of the second hub. Some force will be required to insert the second hub. This is normal.
5. Assure that a gap is maintained between the two hubs so there is no metal to metal contact. Fully tighten the screw(s) on the second hub to the recommended seating torque.

1.313 in (33.3 mm)

35 in-lb (3.96 Nm)

0.9°

70 in-lb (7.9 Nm)

0.005 in (0.13 mm)

22.2 lb-in/Deg (2.52 Nm/Deg)

0.00275 lb-in² (8.042 X 10^-7 kg-m²)

0.030 in (0.76 mm)

8,000 RPM

Yes

Yes

0.013800

-10°F to 180°F (-23°C to 82°C)

Polyurethane 92 Shore A YELLOW

Plain

Ruland Manufacturing

634529068960

USA

8483.60.8000

31163011

0.030 in (0.75 mm)

Performance ratings are for guidance only. The user must determine suitability for a particular application.

Torque ratings for the couplings are based on the physical limitations/failure point of the spiders. Under normal/typical conditions the hubs are capable of holding up to the nominal torque of the spiders. In some cases especially when the smallest standard bores are used or where shafts are undersized slippage on the shaft is possible below the nominal torque of the spiders. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance.

This product does not require a warning.

1. Align the bores of the jaw coupling hubs on the shafts that are to be joined and determine if the misalignment parameters are within the limits of the coupling.(Angular Misialignment: 0.9 deg, Parallel Misalignment: 0.005 in (0.13 mm), Axial Motion: 0.03 in (0.76 mm))
2. Fully tighten the screw(s) on the first hub to the recommended seating torque using a hex torque wrench.
3. Insert a spider into the jaws of the first hub until the raised points contact the base of the hub.
4. Insert the jaws of the second hub into the spider openings until the raised points contact the base of the second hub. Some force will be required to insert the second hub. This is normal.
5. Assure that a gap is maintained between the two hubs so there is no metal to metal contact. Fully tighten the screw(s) on the second hub to the recommended seating torque.

9 mm

15.0 mm

1.313 in (33.3 mm)

+0.03 mm / -0.00 mm

15.00 mm

1.750 in (44.5 mm)

+0.000 mm / -0.013 mm

M3

1 ea

Alloy Steel

Black Oxide

2.5 mm

2.1 Nm

Torque ratings vary with insert selection

Misalignment ratings vary with insert selection

8,000 RPM

5.664 x 10^-6 kg-m²

Yes

JD21/33-98R, JD21/33-92Y, JD21/33-85B

Yes

Yes

Yes

0.080500

-10°F to 180°F (-23°C to 82°C)

2024-T351 Aluminum Bar

Bright

Bright, No Plating

Ruland Manufacturing

0.030 in (0.75 mm)

USA

634529126516

31163011

8483.60.8000

Stainless steel hubs are available upon request.

Performance ratings are for guidance only. The user must determine suitability for a particular application.

Torque ratings for the couplings are based on the physical limitations/failure point of the spiders. Under normal/typical conditions the hubs are capable of holding up to the nominal torque of the spiders. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the nominal torque of the spiders. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance.

WARNING This product can expose you to the chemical Ethylene Thiourea, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

1. Align the bores of the MJC33-9-A jaw coupling hubs on the shafts that are to be joined and determine if the misalignment parameters are within the limits of the coupling. (See spider for misalignment parameters.)
2. Fully tighten the M3 screw(s) on the first hub to the recommended seating torque of 2.1 Nm using a 2.5 mm hex torque wrench.
3. Insert a spider into the jaws of one hub until the raised points contact the base of the hub.
4. Insert the jaws of the second hub into the spider openings until the raised points contact the base of the second hub. Some force will be required to insert the second hub. This is normal.
5. Assure that a gap is maintained between the two hubs so there is no metal to metal contact. Fully tighten the screw(s) on the second hub to the recommended seating torque.