Brass Cage 140TAC03DMSUELPN5D Angular Contact Super Precision Bearings For Ball Screw Support

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140TAC03DMSUELPN5D

Bore Diameter:140 mm

Outside Diameter:300 mm

Width:62 mm

Weight:22.4 kg

Min. Order:1 Piece

The 140TAC03DMSUELPN5D Ball screw support bearings are widely used in the feed drive systems of CNC machine tools, specifically including: machining centers (X/Y/Z axis screw support), CNC lathes (Z-axis), EDM machines, precision grinding machines, industrial robots (linear modules), and semiconductor equipment (wafer positioning platforms).

The 140TAC03DMSUELPN5D bearing is a Angular Contact Super Precision Thrust Ball Bearings, TAC 03 Series for Ball Screw Support (High-Load Drive) with an inner diameter of 140 mm , an outer diameter of 300 mm, a width of 62 mm. It typically uses PN5D = Standard accuracy (ISO Class 5) grade precision tolerances and GCr15SiMn rings, GCr15SiMn rolling mlement. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

140 mm

Outside Diameter:

300 mm

Thickness:

62 mm

Weight:

22.4 KG

Reference speed (Grease rpm):

1250

Limiting speed (Oil rpm):

1676

Specifications:

Structure:

Ball Screw Support Bearings

Number of Rows:

One

Precision Rating:

PN5D = Standard accuracy (ISO Class 5)

Bearing Material:

GCr15SiMn

Cage Type:

M = Brass Cage

Seals Type:

Open

Rolling Mlement Material:

GCr15SiMn

Bore Type:

Cylindrical

System of Measurement:

Metric

Series:

TAC 03 Series (..TAC03DMSUELPN5D)

Rolling Element:

balls

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

200 Piece

Port:

Tianjin, Shanghai, Shenzhen, Guangzhou or Qingdao

Payment term:

by T/T in advance

Delivery time:

2-3 days for stock, 25-30 days for bulk production

Detailed description

140TAC03DMSUELPN5D bearings ( 140 mm x 300 mm x 62 mm) have the advantages of High axial stiffness and load-bearing capacity, 60° contact angle design, pre-installed and pre-loaded for easy installation, optional sealing for maintenance-free operation, and are therefore widely used in the Machine tool ball screws, machining centers, automated equipment, robots, precision measuring devices.

Part Number	140TAC03DMSUELPN5D
Bearing Type	Angular Contact Super Precision Thrust Ball Bearings, TAC 03 Series for Ball Screw Support (High-Load Drive)
Internal design	D = Contact angle 55 °
Contact angle - α	55 °
Type	TAC
Dimension series	03 = 03 Series
Preload	EL = Extra light preload
Arrangement row	One
Arrangement	SU = Universal (One-row)
SU Bearing Mass - m [lb]	49.3830
DB/DF Arrangement H preload [lbf]	377
DB/DF Arrangement H Axial Rigidity	1089 N/µm
DB/DF Arrangement H Starting Torque	0.24 N･m
DB/DF Arrangement H Measured Axial Clearance	-9 µm
Speed ratings (grease) - n_B	1250 min^–1
Speed ratings (oil) - n_G	1676 min^–1
Recommended Grease Quantities - CC	336 g/brg
Dimension
d φ Inside [inch]	5.5118
D Φ Outside [inch]	11.8110
B Width [inch]	2.4409
r min Chamfer [inch]	0.1575
r₁ min Chamfer [inch]	0.0591
d₁ Shoulder [inch]	6.8622
d₂ Shoulder [inch]	8.5197
D₁ Shoulder/Recess [inch]	8.8031
D₂ Shoulder/Recess [inch]	10.5630
Dynamic Axial Capacity
C_a 1 row [lbf]	135951
C_a 2 row [lbf]	221366
C_a 3 row [lbf]	294381
C_a 4 row [lbf]	359642
C_a 5 row [lbf]	420314
Static Axial Capacity
C_0a 1 row [lbf]	178457
C_0a 2 row [lbf]	357359
C_0a 3 row [lbf]	534944
C_0a 4 row [lbf]	719326
C_0a 5 row [lbf]	887906
Other Arrangement	1 rows: DB(<>): 140TAC03DMDBELPN5D DF(><): 140TAC03DMDFELPN5D 2 rows: DT(<<): 140TAC03DMDTELPN5D DFD(><<): 140TAC03DMDFDELPN5D DFF(>><<): 140TAC03DMDFFELPN5D DBD(<<>): 140TAC03DMDBDELPN5D DBB(<<>>): 140TAC03DMDBBELPN5D 3 rows: DFT(><<<): 140TAC03DMDFTELPN5D DFFD(>><<): 140TAC03DMDFFDELPN5D DFFF(>>><<<): 140TAC03DMDFFFELPN5D DBT(<<<>): 140TAC03DMDBTELPN5D DBBD(<<<>>): 140TAC03DMDBBDELPN5D DBBB(<<<>>>): 140TAC03DMDBBBELPN5D 4 rows: DFTD(><<<<): 140TAC03DMDFTDELPN5D DFFT(>><<<<): 140TAC03DMDFFTELPN5D DBTD(<<<<>): 140TAC03DMDBTDELPN5D DBBT(<<<<>>): 140TAC03DMDBBTELPN5D 5 rows: DFTT(><<<<<): 140TAC03DMDFTTELPN5D DBTT(<<<<<>)140TAC03DMDBTTELPN5D

The 140TAC03DMSUELPN5D Ball screw support bearings are typically composed of high-precision angular contact ball bearings paired back-to-back (DB) or in series (DT) configurations. They feature a small contact angle (15° or 20°) and high-rigidity cages (phenolic resin or brass) on both inner and outer rings, achieving a precision grade of P4 or higher. Some models integrate seals and lubrication holes, forming a preload unit.

Ball screw support bearings offer extremely high axial rigidity and load-bearing capacity, accurately withstanding bidirectional axial loads in screw drives. The back-to-back configuration provides anti-overturning moment capability, ensuring positioning accuracy. The preload design eliminates axial backlash, achieving backlash-free, low-friction operation with low heat generation, making them suitable for high-speed feed. They are factory-installed and ready to use, simplifying installation and adjustment.

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High quality 140TAC03DMSUELPN5D ( 22.4 kg Mass, ID: 140 mm OD: 300 mm WD: 62 mm , TAC 03 Series (..TAC03DMSUELPN5D) Series , One Rows , PN5D = Standard accuracy (ISO Class 5) Accuracy Class , GCr15SiMn Material ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 140TAC03DMSUELPN5D. then click the button " Send " The web site will make your purchasing information sent to the supplier's mailbox, who will come to contact you upon they get your information at the first time.

Brass Cage 140TAC03DMSUELPN5D Angular Contact Super Precision Bearings For Ball Screw Support

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