Polyamide Cage 45TAC03DT85SUMPN5D Angular Contact Super Precision Bearings For Ball Screw Support

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45TAC03DT85SUMPN5D

Bore Diameter:45 mm

Outside Diameter:100 mm

Width:25 mm

Weight:0.877 kg

Min. Order:1 Piece

The 45TAC03DT85SUMPN5D 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 45TAC03DT85SUMPN5D 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 45 mm , an outer diameter of 100 mm, a width of 25 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:

45 mm

Outside Diameter:

100 mm

Thickness:

25 mm

Weight:

0.877 KG

Reference speed (Grease rpm):

4054

Limiting speed (Oil rpm):

5171

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 (..TAC03DT85SUMPN5D)

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

45TAC03DT85SUMPN5D bearings ( 45 mm x 100 mm x 25 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	45TAC03DT85SUMPN5D
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	M = Medium preload
Arrangement row	One
Arrangement	SU = Universal (One-row)
SU Bearing Mass - m [lb]	1.9334
DB/DF Arrangement H preload [lbf]	625
DB/DF Arrangement H Axial Rigidity	801 N/µm
DB/DF Arrangement H Starting Torque	0.31 N･m
DB/DF Arrangement H Measured Axial Clearance	-20 µm
Speed ratings (grease) - n_B	4054 min^–1
Speed ratings (oil) - n_G	5171 min^–1
Recommended Grease Quantities - CC	18 g/brg
Dimension
d φ Inside [inch]	1.7717
D Φ Outside [inch]	3.9370
B Width [inch]	0.9843
r min Chamfer [inch]	0.0591
r₁ min Chamfer [inch]	0.0394
d₁ Shoulder [inch]	2.2244
d₂ Shoulder [inch]	2.8228
D₁ Shoulder/Recess [inch]	2.9409
D₂ Shoulder/Recess [inch]	3.5748
Dynamic Axial Capacity
C_a 1 row [lbf]	29809
C_a 2 row [lbf]	48515
C_a 3 row [lbf]	64484
C_a 4 row [lbf]	78605
C_a 5 row [lbf]	92092
Static Axial Capacity
C_0a 1 row [lbf]	31895
C_0a 2 row [lbf]	63539
C_0a 3 row [lbf]	95432
C_0a 4 row [lbf]	126907
C_0a 5 row [lbf]	159546
Other Arrangement	1 rows: DB(<>): 45TAC03DT85DBMPN5D DF(><): 45TAC03DT85DFMPN5D 2 rows: DT(<<): 45TAC03DT85DTMPN5D DFD(><<): 45TAC03DFD85DFDMPN5D DFF(>><<): 45TAC03DFF85DFFMPN5D DBD(<<>): 45TAC03DBD85DBDMPN5D DBB(<<>>): 45TAC03DBB85DBBMPN5D 3 rows: DFT(><<<): 45TAC03DFT85DFTMPN5D DFFD(>><<): 45TAC03DFFD85DFFDMPN5D DFFF(>>><<<): 45TAC03DFFF85DFFFMPN5D DBT(<<<>): 45TAC03DBT85DBTMPN5D DBBD(<<<>>): 45TAC03DBBD85DBBDMPN5D DBBB(<<<>>>): 45TAC03DBBB85DBBBMPN5D 4 rows: DFTD(><<<<): 45TAC03DFTD85DFTDMPN5D DFFT(>><<<<): 45TAC03DFFT85DFFTMPN5D DBTD(<<<<>): 45TAC03DBTD85DBTDMPN5D DBBT(<<<<>>): 45TAC03DBBT85DBBTMPN5D 5 rows: DFTT(><<<<<): 45TAC03DFTT85DFTTMPN5D DBTT(<<<<<>)45TAC03DBTT85DBTTMPN5D

The 45TAC03DT85SUMPN5D 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 45TAC03DT85SUMPN5D ( 0.877 kg Mass, ID: 45 mm OD: 100 mm WD: 25 mm , TAC 03 Series (..TAC03DT85SUMPN5D) 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. 45TAC03DT85SUMPN5D. 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 45TAC03DT85SUMPN5D Angular Contact Super Precision Bearings For Ball Screw Support

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