BD20 Complete Freewheel 1700RPM Overrunning Clutch Bearing

Basic Information
Place of Origin: CHINA
Brand Name: SUMA
Certification: ISO SGS
Model Number: BD20
Minimum Order Quantity: 1
Price: USD600-USD650 PER PIECE
Packaging Details: Wooden Case
Delivery Time: 10-15 Days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, Paypal
Supply Ability: 1000PCS Per Month
Product Name: Overrunning Clutch Bearing BD20 Material: GCr15 Bearing Steel
Torque Capacity: 420Nm Rotation Speed: 1700RPM
Unit Weight: 3.8Kg Warranty: 1 Year
Size: 30*106*77mm OEM: Accept
Port: Shanghai Ningbo
High Light:

1700RPM Overrunning Clutch Bearing

,

Complete Freewheel Overrunning Clutch Bearing

,

Complete Freewheel Overrunning Clutch

             BD20 Complete Freewheel 1700RPM Overrunning Clutch Bearing

Features

  Complete Freewheels BD … X are sealed sprag freewheels with ball bearings and sprag lift-off X. They are supplied oil-filled. The sprag lift-off X ensures wear-free freewheeling operation when the inner ring rotates at high speed.

The freewheels BD … X are used as:

➧ Backstops

➧ Overrunning Clutches

for applications with high speed freewheeling operation and when used as an overrunning clutch with low speed driving operation.

Nominal torques up to 42 500 Nm.

Bores up to 150 mm.

Technical Datas

Item BD20
Inner dia. 20 mm
Outer dia. 106 mm
Width 77 mm
Torque 420 Nm
Weight 3.8 kg
Port Shanghai;Ningbo
Delivery time 10-15 days
Package wooden package, carton package,etc
Application Conveyer, Electric Motor,Bucket elevator,etc

Dimensions and Capacities

 

Freew

heel Size

Type

Nom

inal torque
MN
Nm

Sprag lift-off at inner ring speed min-1

Max. speed
Inner

ring freew

heels/
over

runs min-1

Outer ring drives min-1 mm

Bore

d
Stan

dard mm

mm max. mm B
mm
D
mm
F
mm
G** H
mm
K
mm
L
mm
R
mm
S
mm
T
mm
Z**

Wei

ght
kg

BD 20 DX 420 750 1 700 300 30     30 65,5 106 0,75 M 6 26 5 77 70 0,5 90 6 3,8
BD 25 DX 700 700 1 600 280 35 40   40 81,5 126 0,75 M 6 30 5 93 80 0,5 105 6 6,6
BD 30 DX 1 250 630 1 600 252 45 50   50 88,5 151 0,75 M 8 36 6 102 100 1,5 130 6 10,3
BD 40 SX 1 900 430 1 500 172 45 55 60 60 102,5 181 0,75 M10 37 6 116 120 3,5 160 6 17,4
BD 45 SX 2 300 400 1 500 160 55 65 70 70 115,5 196 1,25 M 12 38 6 130 130 5,0 170 8 22,4
BD 52 SX 5 600 320 1 500 128 65 75 80 80 130,5 216 1,75 M14 44 8 150 150 4,5 190 8 31,1
BD 55 SX 7 700 320 1 250 128 75 85 90 90 146,5 246 1,75 M 14 48 10 170 160 2,5 215 8 45,6
BD 60 SX 14 500 250 1 100 100 85 95 100 105 182,5 291 1,75 M 14 55 10 206 190 2,5 250 8 78,2
BD 70 SX 21 000 240 1 000 96 120     120 192,5 321 1,25 M 16 58 10 215 210 5,0 280 8 93,4
BD 100 UX 42 500 210 750 84 150     150 248,5 411 3,75 M 20 79 10 276 270 6,5 365 10 198,4

The maximum transmissible torque is 2 times the specified nominal torque. See page 14 for determination of selection torque.

Keyway according to DIN 6885, page 1 • Tolerance of keyway width JS10.

* Keyway according to DIN 6885, page 3 • Tolerance of keyway width JS10.

** Z = Number of tapped holes G on pitch circle T.

BD20 Complete Freewheel 1700RPM Overrunning Clutch Bearing 0

Mounting Example

  Complete Freewheel BD 45 SX as an overrun-ning clutch on the shaft end of the high speed rotating main drive of a textile machine. The sprocket is linked to an auxiliary drive. In normal operation (freewheeling operation) the inner ring overruns and the outer ring is at a standstill with the bolted on sprocket. During set-up, the machine is driven by the slowly running aux i-liary drive via the chain drive and the freewheel that is working in the driving operation. With the high speed of the inner ring in freewheeling operation, the type sprag lift-off X is used; the sprags work in freewheeling operation without contact and hence are wear-free.

Mounting
The customer attachment part is centered on the diameter R and bolted on to the face. The pilot on the covers is particularly suitable for at- taching smaller and narrower parts (sprockets, gear wheels etc.). The customer must provide fastening screws of the necessary length in order to mount the attachment part.

The tolerance of the shaft must be ISO h6 or j6 and the tolerance of the pilot diameter R of the attachment part must be ISO H7 or J7.

Example for ordering

Freewheel size BD 30, type with sprag lift-off X

and 45 mm bore:

• BD 30 DX, d = 45 mm

Pictures

BD20 Complete Freewheel 1700RPM Overrunning Clutch Bearing 1
BD20 Complete Freewheel 1700RPM Overrunning Clutch Bearing 2
 

Contact Details
Ellen Zhang

Phone Number : 86-18068536660

WhatsApp : +8618068536660