Polyamide Cage 120TAC03DT85SUELPN5D Angular Contact Super Precision Bearings For Ball Screw Support

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120TAC03DT85SUELPN5D

Bore Diameter:120 mm

Outside Diameter:260 mm

Width:55 mm

Weight:13.3 kg

Min. Order:1 Piece

The 120TAC03DT85SUELPN5D 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 120TAC03DT85SUELPN5D 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 120 mm , an outer diameter of 260 mm, a width of 55 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:

120 mm

Outside Diameter:

260 mm

Thickness:

55 mm

Weight:

13.3 KG

Reference speed (Grease rpm):

1486

Limiting speed (Oil rpm):

1984

Specifications:

Structure:

Ball Screw Support Bearings

Number of Rows:

One

Precision Rating:

PN5D = Standard accuracy (ISO Class 5)

Bearing Material:

GCr15SiMn

Cage Type:

T85 = Polyamide cage

Seals Type:

Open

Rolling Mlement Material:

GCr15SiMn

Bore Type:

Cylindrical

System of Measurement:

Metric

Series:

TAC 03 Series (..TAC03DT85SUELPN5D)

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

120TAC03DT85SUELPN5D bearings ( 120 mm x 260 mm x 55 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	120TAC03DT85SUELPN5D
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]	29.3212
DB/DF Arrangement H preload [lbf]	361
DB/DF Arrangement H Axial Rigidity	1039 N/µm
DB/DF Arrangement H Starting Torque	0.21 N･m
DB/DF Arrangement H Measured Axial Clearance	-7 µm
Speed ratings (grease) - n_B	1486 min^–1
Speed ratings (oil) - n_G	1984 min^–1
Recommended Grease Quantities - CC	254 g/brg
Dimension
d φ Inside [inch]	4.7244
D Φ Outside [inch]	10.2362
B Width [inch]	2.1654
r min Chamfer [inch]	0.1181
r₁ min Chamfer [inch]	0.0433
d₁ Shoulder [inch]	5.9252
d₂ Shoulder [inch]	7.3583
D₁ Shoulder/Recess [inch]	7.6142
D₂ Shoulder/Recess [inch]	9.1220
Dynamic Axial Capacity
C_a 1 row [lbf]	111215
C_a 2 row [lbf]	181980
C_a 3 row [lbf]	240439
C_a 4 row [lbf]	294455
C_a 5 row [lbf]	343877
Static Axial Capacity
C_0a 1 row [lbf]	152754
C_0a 2 row [lbf]	305653
C_0a 3 row [lbf]	458568
C_0a 4 row [lbf]	611347
C_0a 5 row [lbf]	764235
Other Arrangement	1 rows: DB(<>): 120TAC03DT85DBELPN5D DF(><): 120TAC03DT85DFELPN5D 2 rows: DT(<<): 120TAC03DT85DTELPN5D DFD(><<): 120TAC03DFD85DFDELPN5D DFF(>><<): 120TAC03DFF85DFFELPN5D DBD(<<>): 120TAC03DBD85DBDELPN5D DBB(<<>>): 120TAC03DBB85DBBELPN5D 3 rows: DFT(><<<): 120TAC03DFT85DFTELPN5D DFFD(>><<): 120TAC03DFFD85DFFDELPN5D DFFF(>>><<<): 120TAC03DFFF85DFFFELPN5D DBT(<<<>): 120TAC03DBT85DBTELPN5D DBBD(<<<>>): 120TAC03DBBD85DBBDELPN5D DBBB(<<<>>>): 120TAC03DBBB85DBBBELPN5D 4 rows: DFTD(><<<<): 120TAC03DFTD85DFTDELPN5D DFFT(>><<<<): 120TAC03DFFT85DFFTELPN5D DBTD(<<<<>): 120TAC03DBTD85DBTDELPN5D DBBT(<<<<>>): 120TAC03DBBT85DBBTELPN5D 5 rows: DFTT(><<<<<): 120TAC03DFTT85DFTTELPN5D DBTT(<<<<<>)120TAC03DBTT85DBTTELPN5D

The 120TAC03DT85SUELPN5D 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 120TAC03DT85SUELPN5D ( 13.3 kg Mass, ID: 120 mm OD: 260 mm WD: 55 mm , TAC 03 Series (..TAC03DT85SUELPN5D) 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. 120TAC03DT85SUELPN5D. 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.

Polyamide Cage 120TAC03DT85SUELPN5D Angular Contact Super Precision Bearings For Ball Screw Support

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