NZQA registered unit standard
19874 version 4
Page 1 of 4
Title
Service and replace bearings in machines and equipment
Level
4
Credits
12
Purpose
People credited with this unit standard are able to: check
bearings for serviceability; remove and inspect bearings from
machines and equipment; and install bearings to machines and
equipment.
Classification
Mechanical Engineering > Maintenance and Diagnostics in
Mechanical Engineering
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 21912, Apply safe working practices on an engineering
worksite, or demonstrate equivalent knowledge and skills.
Recommended skills
and knowledge
Unit 19873, Demonstrate knowledge of bearings used in
machines and equipment.
Explanatory notes
1
Reference
Health and Safety in Employment Act 1992.
2
Definitions
Industry practice – safe and sound trade practices generally accepted by competent
persons within the mechanical engineering industry.
Worksite procedures – documents that include: worksite rules, codes, and practices;
equipment operating instructions and maintenance schedules; documented quality
management systems; and health and safety requirements.
3
Range
Assessment across all outcomes requires the servicing and replacement of at least
three different types of bearings, which may include but are not limited to – plain, ball,
roller, journal, and thrust.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
19874 version 4
Page 2 of 4
Outcomes and evidence requirements
Outcome 1
Check bearings for serviceability.
Range
machine idle, machine operating.
Evidence requirements
1.1
Bearings are checked while they are in position within the machine or
equipment.
1.2
Bearing assemblies are inspected for conformance to manufacturer’s
specifications.
Range
may include but is not limited to – security, alignment, signs of
wear/deterioration, leakage.
1.3
Bearing lubrication and cooling devices and/or system are checked for
operation against manufacturer’s specifications.
1.4
Bearing diagnostic equipment is used to establish bearing condition in
accordance with the equipment user instructions.
Range
1.5
bearing diagnostic equipment may include but is not limited to –
thermometer, strobe, vibration sensors, current transducer,
ultrasound.
Machine records are completed in accordance with worksite procedures.
Outcome 2
Remove and inspect bearings from machines and equipment.
Evidence requirements
2.1
Bearings and/or assemblies are removed in accordance with manufacturer’s
specifications and industry practice.
2.2
Bearings and/or assemblies are stripped, and parts are identified in accordance
with industry practice.
2.3
Bearings and/or assemblies are cleaned in accordance with industry practice.
2.4
Bearings and/or assemblies are inspected for damage, and measured for wear
in accordance with manufacturer’s specifications or industry practice.
2.5
Waste material is disposed of in accordance with worksite procedures.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
19874 version 4
Page 3 of 4
Outcome 3
Install bearings to machines and equipment.
Evidence requirements
3.1
Bearing parts and fitting equipment are selected to match bearing type and
fitting procedure.
3.2
Bearings and/or assemblies are installed in accordance with manufacturer’s
specifications and industry practice.
may include but is not limited to – clearance, alignment,
preloading, lubrication, scraping surfaces to obtain required fit.
Range
3.3
Locking devices, if any, are secured in accordance with machine requirements.
3.4
Replacement bearings and/or assemblies are functionally checked and tested in
accordance with machine requirements and industry practice.
3.5
Records for bearing replacement are completed in accordance with worksite
procedures.
Replacement information
This unit standard and unit standard 19873 replaced unit
standard 2405.
Planned review date
31 December 2016
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
28 April 2003
31 November 2011
Revision
2
25 July 2006
31 November 2011
Rollover
3
20 June 2008
31 December 2014
Review
4
15 April 2011
N/A
Consent and Moderation Requirements (CMR) reference
0013
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
19874 version 4
Page 4 of 4
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMRs). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact Competenz qualifications@competenz.org.nz if you wish to suggest
changes to the content of this unit standard.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016