Lovejoy Morgan coupling

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Lovejoy Morgan coupling

2016-03-23 16:59:16

SHORT TEXT	LONG DESCRIPTION
COUPLING	COUPLING RRU - 87 DROPOUT STYLE; Make : Lovjoy Morgan part no: 10405608

Uniflex Coupling Design Flexible Spring Type Coupling with Exclusive Triple Wound Spring Design

The Uniflex Coupling is an all steel, single piece coupling that solves a variety of application concerns including: high misalignment, space limitations, high temperature, and exceptionally low backlash/windup. The unique flexing center of the Uniflex consists of three opposingly wound square wire springs for forward or reverse operation. Two steel hubs are then brazed to the steel spring pack to create a durable one-piece flexible coupling. Benefits of this coupling include:

■ This designed flexibility compensates for high degrees of shaft misalignment (up to 4.5° angular, up to .045" parallel).

■ The one piece Uniflex is simple to install — nothing to replace, no wearing parts, and no lubrication needed.

■ The compact design provides a coupling that is smaller and lighter than most couplings of comparable torque ratings. It is also

well suited for applications with inaccessible mounting locations.

■ All metal design means that the Uniflex can be used in applications where severe environmental concerns are a factor. Standard

couplings withstand temperatures to +250° F (due to soldering); special designs to +600° F (stainless steel w/electron beam weld).

■ The Uniflex is unaffected by oil, grease, dirt and most industrial chemicals.

UNIFLEX TRIPLE SPRING COUPLING

The Uniflex is designed for applications up to 30,000 RPM such as textile equipment, conveyors, machine tools, centrifugal pumps, blowers, winding machines, and steering mechanisms. In addition, most sizes can be supplied in stainless steel for applications requiring frequent washdowns (food processing), additional chemical resistance (salt

water handling), non-magnetic properties (military), or sterile/vacuum usage (pharmaceutical).

Uniflex Coupling Types

Four styles of Uniflex couplings are available: shaft-to-shaft, drop out, flange-to-flange and flange-to-shaft.

U Type

This is a durable one-piece flexible coupling for general purpose shaft-to- shaft applications. It is the basis for all Uniflex coupling types.

RRU Type

This design offers “quick disconnect” for drop out requirements. It can also accomodate a slightly larger shaft diameter than the standard U type.

UF Type

This flange-to-flange type is designed to connect flange mounted equipment to another flange while compensating for misalignment. It is also the center drop out section of the RRU type.

UFH Type

A flange-to-shaft configuration, this couples flange mounted equipment to a shaft with all the benefits of Uniflex versatility. The stock flange plate is the same as used on the UF type.

Uniflex Coupling Selection Step 3: Determine the application service factor from page JW-6.

Once it is determined that the unique features of Uniflex meet your application, selection of the proper coupling depends on three factors: torque transmission, bore requirements, and RPM. When selecting a Uniflex coupling, the torque capability shown as maximum must not be exceeded. Nominal torque adjusted by an application service factor, start up torque, braking torque and any cyclic shock or peak torques inherent in the application must be considered.

Determine the correct Uniflex coupling size by working out the following calculations:

Step 1: Determine the Uniflex type or configuration from page SP-14.

Step 2: Calculate the nominal torque as T or nominal HP/100RPM

T = (HP* x 63,025) HP/100RPM = HP* x 100

(in-lbs) RPM* RPM*

T = (KW* x 9,550) (Nm) RPM

* Usually HP (KW) & RPM of prime mover, if the coupling is to be attached to the prime mover or if no speed or torque devices are between the driver and driven equipment.

Multiply the nominal torque by the application service factor to

determine the total required torque.

Step 4: Select the size.

Step 5: Check to be sure the peak torque or maximum torque from starting, braking or cyclic peaks does not exceed the coupling maximum capability. For applications involving frequent starts and stops, refer to Lovejoy Engineering. NOTE: Diesel and gasoline engine drives usually require special considerations. Refer to Lovejoy Engineering.

Step 6: a. Check the coupling maximum bore capability versus the shaft to be used. If necessary, pick a larger size coupling to get the needed bore capacity.

b.Check the maximum speed.

c. Check any limiting dimensions.

Selection Example

A rolling device operates at 6,000 RPM and requires 15 HP. The driving shaft is 1.250" diameter and the roll shaft is 1.125" diameter. Select the proper U type shaft-to-shaft coupling. Occasional emergency stops impose 675 in-lbs of torque, otherwise the operation has no cyclic loading. Start up torque is 1/3 of emergency stopping torque. Rolls of various types typically have a 1.5 - 2.0 application service factor.

Determine the nominal torque or HP/100RPM:

Step 1: T= 15 x 63,025 = 158 in-lbs 6,000

HP/100 RPM = 15 x 100 = 0.25 HP/100 RPM

6,000

Step 2: Determine the Total Rated Torque:

Tr = 158 x 2.0 = 316 in-lbs

Maximum stopping torque = 675 in-lbs Start up torque = 225 in-lbs

The U-125 coupling meets all the above requirements with the key item as the maximum stopping torque.

Step 3: The U-125 has a maximum bore capability of 1.250", which covers the application driver shaft of the same size. The roll shaft is 1.125", which is less than maximum.

Note: Uniflex maximum bore sizes includes a standard keyway allowance.

Uniflex Coupling Technical Data

Selection Chart

Size	Wind Up At Max. Torque1	Misalignment Capability
Size	Wind Up At Max. Torque1	Maximum Angular Offset	in	Maximum Parallel Offset mm	Maximum Recommended End Play in mm		Maximum Torque in-lbs Nm		HP 100RPM	Maximum Speed RPM
18 Reg.	1.80°	3.0°	0.008	0.20	0.010	0.25	18	2.0	0.03	30,000
25 Reg.	1.80°	4.5°	0.011	0.28	0.020	0.51	34	3.8	0.05	30,000
37 Reg.	1.78°	4.5°	0.014	0.36	0.020	0.51	39	4.4	0.06	30,000
50 Reg.	1.82°	4.5°	0.021	0.53	0.035	0.89	82	9.3	0.13	30,000
62 Reg.	0.85°	3.0°	0.019	0.48	0.035	0.89	126	14.2	0.20	20,000
75 Reg.	1.82°	4.5°	0.028	0.71	0.040	1.02	175	19.8	0.28	20,000
87 Reg.	1.68°	4.5°	0.035	0.89	0.040	1.02	346	39.1	0.55	10,000
100 Reg.	1.03°	3.0°	0.030	0.76	0.040	1.02	565	63.8	0.90	6,000
125 Reg.	1.85°	4.5°	0.044	1.12	0.040	1.02	755	85.3	1.21	6,000
137 Reg.	1.85°	3.0°	0.035	0.89	0.040	1.02	1,260	142.4	2.02	6,000
150 Reg.	0.85°	3.0°	0.041	1.04	0.040	1.02	1,890	213.5	3.02	3,000
25 Short	1.07°	3.0°	0.007	0.18	0.015	0.38	34	3.8	0.05	30,000
37 Short	1.09°	3.0°	0.009	0.23	0.015	0.38	39	4.4	0.06	30,000
50 Short	1.05°	3.0°	0.014	0.36	0.010	0.25	82	9.3

Size	HD in	Min. Bore in mm	Max. Bore in mm	LTB Reg Short in in		Reg in	OAL1 Short in	Pin Location (SL) Reg Short in in		Pin Size in	Set Screw Qty Per Hub Size		Weight lbs. kg.
U-18	0.61	0.12 3	0.25 6	0.31	.....	1.00	.....	0.16	.....	3/32	1	6-32	0.09	0.04
U-25	0.73	0.12 3	0.31 8	0.38	0.32	1.50	1.00	0.16	0.16	3/32	1	6-32	0.10	0.05
U-37	0.86	0.25 6	0.38 9.5	0.52	0.52	2.06	1.65	0.25	0.25	3/32	1	10-24	0.27	0.12
U-50	1.04	0.31 8	0.50 12.5	0.64	0.50	2.50	1.82	0.31	0.31	1/8	1	1/4-20	0.36	0.16
U-62	1.42	0.31 8	0.62 16	0.84	0.62	2.72	2.28	0.38	0.38	1/8	1	1/4-20	0.78	0.35
U-75	1.42	0.38 10	0.75 19	0.84	0.84	3.31	2.72	0.41	0.41	1/8	1	1/4-20	0.82	0.37
U-87	1.73	0.44 11	0.88 22	0.84	0.84	3.50	2.91	0.44	0.44	3/16	1	1/4-20	1.40	0.63
U-100	2.11	0.44 11	1.00 25	1.29	1.00	4.12	3.56	0.56	0.56	5/16	1	1/4-20	2.60	1.18
U-125	2.17	0.62 16	1.25 31	1.28	1.10	4.88	3.75	0.62	0.62	5/16	1	3/8-16	2.74	1.24
U-137	2.54	0.62 16	1.38 35	1.58	1.01	5.25	4.12	0.69	0.69	3/8	1	3/8-16	4.00	1.81
U-150	2.98	0.75 19	1.50 38	1.88	1.72	6.28	5.00	0.81	0.81	3/8	1	3/8-16	8.00	3.63

Size	HD	Max. Bore in mm	LTB Reg Short in in		OAL1 Reg Short in in		Pin Location (SL) Reg Short in in		Pin Size in	Set Screw Qty Per Hub Size		Weight lbs kg.
U-18	0.60	0.25 6	0.31	.....	0.95	.....	0.16	.....	3/32	1	6-32	0.09	0.04
U-25	0.62	0.31 8	.....	0.41	.....	0.97	.....	0.16	3/32	1	6-32	0.10	0.05
U-37	0.75	0.31 8	.....	0.68	.....	1.68	.....	0.25	3/32	1	10-24	0.27	0.12
U-50	0.94	0.38 9.5	.....	0.58	.....	1.80	.....	0.31	1/8	1	1/4-20	0.36	0.16
U-62	1.25	0.50 12.5	0.96	0.77	2.65	2.27	0.38	0.38	1/8	1	1/4-20	0.78	0.35
U-75	1.25	0.50 12.5	.....	0.96	.....	2.65	.....	0.41	1/8	1	1/4-20	0.82	0.37
U-87	1.69	0.75 19	.....	0.99	.....	2.94	.....	0.44	3/16	1	1/4-20	1.40	0.63
U-100	1.94	1.00 25	1.41	1.13	4.09	3.55	0.56	0.56	5/16	1	1/4-20	2.60	1.18
U-125	1.97	1.00 25	.....	1.25	.....	3.99	.....	0.62	5/16	1	3/8-16	2.74	1.24

Size	HD in	Min. Bore in. mm	Max. Bore in. mm	HL in	FL in	FL1 in	OAL1 in	D in	FD in	Pin Loc. Pin SL Size in in		S2 in	BC in	Mtg. Screw3 Qty. Size		Set Screw Qty. Size
RRU-50	2.00	0.38 10	1.00 25	1.00	.....	0.25	3.52	1.88	2.00	0.50	1/8	1.56	1.50	3	1/4-20	1	1/4-20
RRU-75	2.50	0.38 10	1.25 32	1.25	.....	0.38	4.27	2.38	2.50	0.62	1/8	1.81	2.00	3	1/4-20	1	1/4-20
RRU-87	2.87	0.44 11	1.38 35	1.38	.....	0.38	4.84	2.75	2.88	0.69	3/16	2.12	2.25	3	1/4-20	1	1/4-20
RRU-100	2.31	0.44 11	1.38 35	1.38	0.50	0.38	4.90	3.12	3.25	0.44	5/16	2.18	2.68	3	5/16-18	1	1/4-20
RRU-125	2.75	0.62 16	1.62 41	1.62	0.50	0.50	5.84	3.56	3.68	0.56	5/16	2.62	3.12	3	5/16-18	1	3/8-16
RRU-137	3.25	0.62 16	1.88 48	1.88	0.50	0.50	6.53	4.25	4.38	0.69	3/8	2.81	3.75	3	3/8-16	1	3/8-16
RRU-150	3.75	0.75 19	2.12 54	2.12	0.62	0.50	7.66	5.00	5.38	0.82	3/8	3.44	4.38	4	3/8-16	1	3/8-16

Size	HD in	Min. Bore in mm	Max. Bore in mm	LTB Reg Short in in		FL1 in	OAL1 Reg Short in in		FD in	D in	Pin Loc. Pin SL Size in in		BC in	Mtg. Screw2 Qty. Size		Set Screw Qty. Size
UFH-50	1.04	0.31 8	0.50 13	0.64	0.50	0.25	2.03	1.50	2.00	1.88	0.31	1/8	1.50	3	1/4-20	1	1/4-20
UFH-75	1.42	0.38 10	0.75 19	0.84	0.84	0.38	2.58	2.00	2.50	2.38	0.41	1/8	2.00	3	1/4-20	1	1/4-20
UFH-87	1.73	0.44 11	0.88 22	0.84	0.84	0.38	2.82	2.24	2.88	2.75	0.44	3/16	2.25	3	1/4-20	1	1/4-20
UFH-100	2.11	0.44 11	1.00 25	1.29	1.00	0.38	3.17	2.88	3.25	3.12	0.56	5/16	2.68	3	5/16-18	1	1/4-20
UFH-125	2.17	0.62 16	1.25 32	1.28	1.10	0.50	3.75	2.82	3.68	3.56	0.62	5/16	3.12	3	5/16-18	1	3/8-16
UFH-137	2.54	0.62 16	1.38 35	1.58	1.02	0.50	4.03	3.46	4.38	4.25	0.69	3/8	3.75	3	3/8-16	1	3/8-16
UFH-150	2.98	0.75 19	1.50 .....	1.88	1.72	0.63	4.86	3.75	5.38	5.00	0.81	3/8	4.38	4	3/8-16	1	3/8-16

Uniflex Coupling Types

U Type

RRU Type

UF Type

UFH Type

Selection Example

Uniflex Coupling Technical Data

Selection Chart

Uniflex Coupling Data

U Type — Shaft-to-Shaft

Stainless Steel U Series Dimensional Data

Uniflex Coupling Data

RRU Type — Dropout Style

UF Type — Flange-to-Flange

UFH Series Dimensional Data

Uniflex Coupling Types

U Type

RRU Type

UF Type

UFH Type

Selection Example

Uniflex Coupling Technical Data

Selection Chart