1" - 4 Single Lead Acme
1" - 4 Single Lead Acme
This 1” - 4 single lead acme machine screw is available in both alloy steel and stainless steel with a corresponding aluminum bronze nut. Choose from right-hand or left-hand threads.
MACHINE SCREW SPECIFICATIONS | RH | LH |
---|---|---|
ALLOY STEEL SCREW NO. | AS 100 R 025 A | AS 100 L 025 A |
STAINLESS STEEL SCREW NO. | AS 100 R 025 S | A S100 L 025 S |
THREAD FORM | ACME | |
SCREW DIAMETER - TURNS / INCH | 1-4 | |
PITCH / LEAD | 0.250 IN. | |
ROOT DIAMETER | 0.699 IN. | |
SCREW WEIGHT (LB./FT.) | 2.2 | |
TORQUE TO RAISE 1 POUND | 0.097 IN.-LB. | |
MAXIMUM SCREW LENGTH | 12 FEET |
Nut and Flange Specifications
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NUT SPECIFICATIONS | RH | LH |
---|---|---|
NUT PART NO. | AN 100 R 025 B | AN 100 L 025 B |
NUT WITH FLANGE PART NO. | AF 100 R 025 | AF 100 L 025 |
DYNAMIC LOAD CAPACITY (LBS.) | 5,000 | |
STATIC LOAD CAPACITY (LBS.) | 16,000 | |
EFFICIENCY | 41.9% | |
MATERIAL | BRONZE | |
NOMINAL DIAMETER "A" | 1.50 IN. | |
NUT LENGTH "B" | 1.50 IN. | |
THREAD LENGTH "C" | 0.50 IN. | |
THREAD SIZE | 1.375-16 UN | |
FLANGE PART NUMBER | FL-1375 | |
FLANGE DIAMETER "D" | 2.75 IN. | |
FLANGE THICKNESS "E" | 0.52 IN. | |
FLANGE HOLE DIAMETER "F" | 0.266 IN. | |
NUMBER OF HOLES IN FLANGE "G" | 4 | |
FLANGE BOLT CIRCLE "H" | 2.260 IN. | |
FLANGE MATERIAL | BLACK OXIDE COATED STEEL |
2D/3D Drawings
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Product Media
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- Alloy steel or stainless steel screw
- Aluminum bronze nut
- Steel flange with black oxide coating
Sample Part Number:
Click on the part number to reveal additional information about the screw design and shaft codes.
Model Number
Thread Form
A: Acme
S: Stub Acme
Component
A: Assembly
S: Screw - without ball nut or bearing mounts
Screw Diameter - Thread direction - TPI (English)
Dia/TPI | Code |
---|---|
1/2 – 8 | 050 R 013 (Stub Acme) |
5/8 – 8 * | 063 R 013 (Stub Acme) |
5/8 – 4 * | 063 R 025 (Stub Acme) |
5/8 – 2 | 063 R 050 (Stub Acme) |
3/4 – 5 * | 075 R 013 |
7/8 – 2 * | 088 R 050 |
1 –10 | 100 R 010 |
1 – 4 * | 100 R 025 |
1 – 2 | 100 R 050 |
1 – 1 | 100 R 100 (Stub Acme) |
1 1/4 – 4 | 125 R 025 |
1 1/2 – 4 | 150 R 025 |
1 1/2 – 2 2/3 | 150 R 038 |
1 1/2 – 2 2/3 * | 150 R 038 (Stub Acme) |
1 1/2 – 2 | 150 R 050 |
2 – 4 | 200 R 025 |
2 – 2 * | 200 R 050 |
2 1/4 – 4 * | 225 R 025 |
2 1/4 – 2 * | 225 R 050 |
2 1/2 – 4 | 250 R 025 |
2 1/2 – 2 * | 250 R 050 |
3 3/8 – 1 1/2 | 338 R 067 (Stub Acme) |
3 1/2 – 1 1/2 | 350 R 067 |
3 3/4 – 1 1/2 | 375 R 067 |
4 1/2 – 1 1/2 | 450 R 067 |
5 – 1 1/2 | 500 R 067 |
6 – 1 1/3 | 600 R 075 |
R – Right-hand – all thread diameters/leads are available with right hand threads
L – Left-hand *- Substitute an ”L” in the part number for left hand leads
Stub Acme screws offer a larger root diameter than their Acme counterparts
*Available in stainless steel
Screw Material
A: Alloy Steel
S: Stainless Steel
Note: not all threads or materials are available for all sizes
First End of Screw
(Flange or threaded end of nut always faces second end)
Bearing Mount Options | Machining Options (choose one that corresponds to the bearing block) |
---|---|
SB - Simple Single* | 1N – Threaded shaft only |
DB - Simple Double | 2K – Thd Shaft w Kwy, 2L – Thd Shaft no Kwy, 2N – Threaded shaft only |
FB - Fixed Double | 3K – Thd Shaft w Kwy, 3L – Thd Shaft no Kwy, 3N – Threaded shaft only |
XX - No Bearing | 4K – Shaft w Keyway, 4L – Shaft no Keyway, 4N – Support only, XX – No Machining |
(When selecting ”XX – No Bearing”, choose from mounting options 1K through 4N or XX, above)
* All Simple Single bearing mounts are designed for radial loads only
Second End of Screw
(Flange or threaded end of nut always faces away from second end)
Bearing Mount Options | Machining Options (choose one that corresponds to the bearing block) |
---|---|
SB - Simple Single* | 1N – Threaded shaft only |
DB - Simple Double | 2K – Thd Shaft w Kwy, 2L – Thd Shaft no Kwy, 2N – Threaded shaft only |
FB - Fixed Double | 3K – Thd Shaft w Kwy, 3L – Thd Shaft no Kwy, 3N – Threaded shaft only |
XX - No Bearing | 4K – Shaft w Keyway, 4L – Shaft no Keyway, 4N – Support only, XX – No Machining |
(When selecting ”XX – No Bearing”, choose from mounting options 1K through 4N or XX, above)
* All Simple Single bearing mounts are designed for radial loads only
Nut Properties
B - Bronze
X - Do Not Include Nut in Assembly
Other Options
F - Include Flange
X - Do Not Include a Flange
Screw Length 000.00"
Enter value in inches with decimal if needed
Note that available screw length varies among screw sizes.
SB Bearing Blocks
Screw Number | Bearing Mount No. | A | B | C | D | E | F | G | H | I | J | K |
---|---|---|---|---|---|---|---|---|---|---|---|---|
AS100R025A | SB-15 | 3.500 | 2.125 | 1.125 | 0.375 | 1.375 | 1.250 | 2.500 | 0.813 | 1.625 | .281 (4x) | .406 Thru |
AS100R050A | .625 C'Bore | |||||||||||
1.000 Deep |
DB Bearing Blocks
Screw Number | Bearing Mount No. | A | B | C | D | E | F | G | H | I | J | K | L |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AS100R025A | DB-15 | 3.500 | 2.125 | 1.125 | 0.375 | 1.375 | 1.250 | 2.500 | 0.813 | 1.625 | .281 (4x) | .406 Thru | N/A |
AS100R050A | .625 C'Bore | ||||||||||||
1.000 Deep |
FB Bearing Blocks
Screw Number | Bearing Mount No. | A | B | C | D | E | F | G | H | I | J | K | L |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AS100R025A | FB-15 | 3.500 | 2.125 | 1.125 | 1.250 | 4.585 | 0.500 | 2.500 | 1.875 | 1.188 | 2.375 | .250 Thru | .406 Thru |
AS100R050A | .375 C'Bore | .625 C'Bore | |||||||||||
#5 Taper Pin | 1.130 Deep |
SB Screw End Conditions
Screw Number | Bearing Mount No. | o S1 | A1 | A2 | A3 | A4 | A5 | A6 | o A7 | A8 | A9 | A10 | A11 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AS075R020A | SB-12 | 0.4726 | 0.890 | 0.450 | 0.56 | 0.127 | 0.472 | 1.029 | 1.25 | .469-32 UNS | W-01 | N-01 | 6301 |
AS088R050A | 0.4723 | 0.125 |
SB Screw End Conditions
Screw Number | Bearing Mount No. | o S1 | A1 | A2 | A3 | A4 | A5 | A6 | o A7 | A8 | A9 | A10 | A11 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AS100R025A | SB-15 | 0.5908 | 0.930 | 0.490 | 0.56 | 0.127 | 0.512 | 1.094 | 1.38 | .586-32 UNS | W-02 | N-02 | 6302 |
AS100R050A | 0.5905 | 0.125 |
DB Screw End Conditions
Screw Number | Bearing Mount No. | oS1 | oS2 | A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
AS100R010A | DB-20 | 0.7877 | 0.625 | 4.00 | 2.88 | 2.378 | 0.590 | 0.040 | .781-32 UNS | W-04 | N-04 | 3/16 x 5/8 |
SS100R100A | 0.7873 | 0.624 | ||||||||||
AS125R025A |
DB Screw End Conditions
Screw Number | Bearing Mount No. | oS1 | oS2 | A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
AS100R025A | DB-15 | 0.5908 | 0.500 | 3.59 | 2.59 | 2.145 | 0.512 | 0.040 | .586-32 UNS | W-02 | N-02 | 1/8 x 5/8 |
AS100R050A | 0.5905 | 0.499 |
DB Screw End Conditions
Screw Number | Bearing Mount No. | oS1 | oS2 | A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AS100R025A | FB-15 | 0.5908 | 0.500 | 4.62 | 3.31 | 2.73 | 2.000 | 0.512 | 0.995 | 0.035 | .586-32 UNS | W-02 | N-02 | 1/8 x 5/8 |
AS100R050A | 0.5905 | 0.499 |