1.500 In. Diameter - 0.500 In. Lead

This 1.500 inch diameter ball screw has a 0.500 inch lead. Corresponding ball nuts with right-hand threads are available in standard capacity or high capacity.

 

Ball screw specificationsRH
Ball screw part no.BS 150 R 050 A
Nominal ball circle diameter 1.500 in.
Lead 0.500 in.
Screw diameter 1.530 in.
Root diameter 1.260 in.
Screw weight 5.34 lb./ft.
Torque to raise 1 pound* 0.089 in.-lb.
Maximum screw length 24 ft.

* Torque to raise 1 pound = 0.177 x inches lead x pounds load

Standard Capacity Ball Nut Specifications (S)

Ball nut specificationsRH
Ball nut part no. (standard capacity)BN 150 R 050 S
Ball nut with flange part no.BF 150 R 050 S
Dynamic load capacity** 9,050 lb.
Static load capacity 55,000 lb.
Ball nut weight 4.18 lb.
Nominal ball dia. (avg. ball qty.) 5/16 in. (102)
Flange part no.FL-2548-B
Wiper kit part no. WK-50

** for 1,000,000 inches

High Capacity Ball Nut Specifications (H)

Ball nut specificationsRH
Ball nut part no. (standard capacity)BN 150 R 050 H
Ball nut with flange part no.BF 150 R 050 H
Dynamic load capacity** 12,900 lb.
Static load capacity 56,000 lb.
Ball nut weight 4.99 lb.
Nominal ball dia. (avg. ball qty.) 5/16 in. (140)
Flange part no.FL-2360
Wiper kit part no. WK-50A

** for 1,000,000 inches


Click on Product Specifications below to view Bearing Block, Screw End Conditions, and Wiper Kit options available for this screw. 

  • Ball screws are made from alloy steel and case hardened to Rc56 (minimum).
  • A black oxide finish is applied to prevent corrosion during shipping and for a brief storage period.
  • The rust inhibiting properties of the screw lubricant offers additional corrosion resistance.
  • Ball nut housings are steel with case hardened threads. A black oxide coating provides additional protection.
  • Flanges are constructed of steel with a black oxide coating.

Sample Part Number:

Click on the part number to reveal additional information about the ball screw design and shaft codes.

Thread Form

B: Ball Screw

Component

A: Assembly
S: Screw - without ball nut or bearing mounts

Screw Diameter - Thread direction - TPI (English)

Dia/TPI Code
5/8 - .200* 063 R 020
3/4 - .200 075 R 020
3/4 - .500 075 R 050
1 - .250* 100 R 025
1 - .500 100 R 050
1 - 1.000 100 R 100
1 1/2 - .500 150 R 050
1 1/2 - 1.00 150 R 100
1 1/2 - 1.875 150 R 188
2 1/4 - .500 225 R 050
2 1/2 - .500 250 R 050
3 - .660 300 R 066
4 - 1.000 400 R 100

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

 

Screw Material

A: Alloy Steel

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

Ball Nut Properties

S - Standard Capacity
H - High Capacity
U - Ultra Capacity
X - No ball nut

Other Options

F - With Flange
B - With Flange and Wipers
W - Wipers
X - No Options

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 NumberBearing Mount No.ABCDEFGHIJK
BS150R050A SB-30 6.500 3.690 1.875 0.875 2.000 2.375 4.750 1.156 2.312 .656 (4x) .906 Thru
  1.375 C'Bore
  2.060 Deep

DB Bearing Blocks

Screw NumberBearing Mount No.ABCDEFGHIJKL
BS150R050A DB-30 6.500 3.690 1.875 0.875 2.000 2.375 4.750 1.156 2.312 .656 (4x) .906 Thru N/A
  1.375 C'Bore
  2.060 Deep

FB Bearing Blocks

Screw NumberBearing Mount No.ABCDEFGHIJKL
BS150R050A FB-30 6.500 3.690 1.875 2.375 6.595 1.156 4.750 N/A 3.225 3.725 .437 Thru .937 Thru
  .687 C'Bore 1.375 C'Bore
  #8 Taper Pin 2.250 Deep

SB Screw End Conditions

Screw NumberBearing Mount No.oS1A1A2A3A4A5A6o A7A8A9A10A11
BS150R050A SB-30 1.1814 1.275 0.720 0.70 0.190 0.748 1.587 2.43 1.173-18 UNS W-06 N-06 6306
  1.1810 0.188

DB Screw End Conditions

Screw NumberBearing Mount No.oS1oS2A1A2A3A4A5A6A7A8A9
BS150R050A DB-30 1.1814 1.000 5.33 3.60 3.047 0.748 0.063 1.173-18 UNS W-06 N-06 1/4 x 1
  1.1810 0.999

FB Screw End Conditions

Screw NumberBearing Mount No.oS1oS2A1A2A3A4A5A6A7A8A9A10A11
BS150R050A FB-30 1.1814 1.000 6.67 4.92 4.20 3.300 0.748 1.828 0.075 1.173-18 UNS W-06 N-06 1/4 x 1
  1.1810 0.999

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