Manufacture: Suntes (Sanyo Shoji Co., Ltd.)
Model: DB-2021B

Model code

Dimensions

Specification

Cylinder Size(inch)	1･3/8	2･1/8
Cylinder Area( cm2 )	9.57	22.88
Hydraulic pressure used(MPa)	1.00 to 6.86 *1	0.50～4.90 *1
Required oil volume( cm3 )	1.0 (2.5)	2.5 (6.0)
Disk outer diameter(mm)	φ222～702
Disc Thickness(mm)	10.4
Effective Braking Radius(m)	-31
Pad Type	DB-0400
Pad Effective Wear Allowance(mm)	10.0
Pad Friction Coefficient(μ)	Dynamic: 0.3 Static: 0.15 *2
Hydraulic oil	Brake fluid (DOT3 equivalent) orMineral oil (equivalent to ISO VG32)
mass(kg)	4.2	4.4

( ) indicates large retraction

The minimum oil pressure used varies depending on individual differences in sliding resistance, etc., so it is a reference value only.
When using new pads, please break them in to obtain the required brake torque.
The friction coefficient in the specifications column is the value after breaking in.

Pressing force

Torque calculation T = 2 x μ x F x r
 T: Torque (Nm)
μ: Pad friction coefficient
F: Pressing force (N)
r: Effective braking radius (m)
If you have any questions about specifications, please contact us.
The dimensions and specifications listed may be changed without notice for improvement purposes