![Black Bruin BB 4 Скачать руководство пользователя страница 31](http://html.mh-extra.com/html/black-bruin/bb-4/bb-4_product-manual_2764299031.webp)
Seal protector and grease nipples
The seal protector is a standard feature in the BBC series motors (excluding the
double brake motors). The seal protector is also known as a grease ring.
The seal protector prevents dirt and moisture from entering to the motor shaft seal.
The operation of the seal protector is based on a sealing lubricant pocket.
Figure 24. BBC motor's seal protector and grease nipples.
Brakes
There is a variety of brakes available for Black Bruin motors. Brakes, like motors, are
designed in compact, powerful packages and tailored to meet the customer specific
requirements in various applications.
Static wet multi-disc brake for BBC and BB series motors
The spring applied, pressure to release, wet multi-disc brake is a parking brake, but it
can be used dynamically as an emergency brake.
For the minimum brake release pressure, refer to
on page 10
and
on page 12. The brake operating pressure in BBC (low
pressure brake) can not be higher than 30 bar. Depending on the Black Bruin frame
size, the brake may have internal leakage (max. 0.6 l/min with oil viscosity of 35 cSt),
which has to be considered in the brake circuit design. In BBC motors the brake can
be manually released for emergency towing.
Standard, high pressure, BB brakes are equipped with static seals and do not have
internal leakage. Note that EP, HD and some anti-wear additives in oil can cause
remarkable reduction in brake torque.
3.11
3.12
3.12.1
Motor Description
Product Manual
31
Содержание BB 4
Страница 1: ...Product Manual BB and BBC series ...